জব প্রিপারেশন

15701 Math

a+2ab=6 এবং ab=4 হলে 2/a+1/b=?

A)2-Jan

B)1

C)2-Mar

D)-1.5

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15702 Math

১৫ ইউনিটের বিক্রয় মূল্য ২০ ইউনিটের ক্রয়মূল্যের সমান হলে বিক্রেতা কত লাভ করবে?

A)৩৩.৩০%

B)৩৭.৩০%

C)৪৫.৩০%

D)৪৮.৩০%

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15703 Math

একটি গ্রামের লোকসংখ্যা ৮% হারে বেড়ে ১৬২০ হলে পূর্বের লোকসংখ্যা কত ছিল?

A)১৪০০

B)১৪৫০

C)১৫০০

D)১৫৫০

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15704 Math

একটি কলম ২৭০ টাকায় বিক্রয় করাতে ১০% ক্ষতি হয়। কলমটির ক্রয়মূল্য কত ছিল?

A)২৪৩ টাকা

B)২৭০ টাকা

C)২৭৯ টাকা

D)৩০০ টাকা

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15705 Math

If 18 is 15 percent of 30 percent of a certain number, what is the number ?

A)9

B)36

C)40

D)81

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15706 Math

A train travels from New York to Chicago, a distance of approximately 840 miles, at an average rate of 60 miles per hour and arrives in Chicago at 6:00 in the evening , Chicago time . At what hour in the morning, New York City time, did the train depart for Chicago time . At what hour in the morning , New York City time, did the train depart for Chicago ? ( Chicago time is one hour earlier than New York City time.)

A)4:00

B)5:00

C)6:00

D)7:00

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15707 Math

Maria purchased brand X pens for TK. 4.00 a piece and brand Y pens for TK. 2.80 a piece. If Maria purchased a total of 12 of those pens for TK. 42.00, how many brand X pens did she purchase ?

A)4

B)5

C)6

D)7

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15708 Math

If the population of a certain country increases at the rate of one person every 15 seconds , by how many persons does the population increase in 20 minutes ?

A)80

B)100

C)150

D)240

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15709 Math

In a survey of the people in Dhaka, it was found that 65% of the people surveyed watched the news on television , 40% read a newspaper, and 25% read a newspaper and watched the news on television . What percent of the people surveyed neither watched the news on television nor read a newspaper ?

A)0%

B)5%

C)10%

D)15%

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15710 Math

The average of 6 numbers is 8.5, when one number is discarded the average of the remaining numbers becomes 7.2 . What is the discarded number ?

A)7.8

B)9.8

C)10

D)12.4

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15711 Math

3.003/2.002 = ?

A)1.05

B)1.50015

C)1.501

D)1.5015

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15712 Math

If b < 2 and 2x - 3b = 0, which of the following must be true ?

A)x>-3

B)x<2

C)x=3

D)x<3

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15713 Math

What is the least integer that is a sum of three different primes each greater than 20 ?

A)69

B)73

C)75

D)79

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15714 Math

A ferry, when empty, travels twice as fast as when it is full. It travels 20 miles south with a cargo, spends 30 minutes for unloading, and returns to its original port empty in a total of 8 hours, what is the speed of the ferry when it is empty?

A)8 mph

B)10 mph

C)12 mph

D)15 mph

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15715 Math

The average of five numbers is 25. After one if the numbers is removed, the average of the remaining is 31. What number has been removed?

A)7

B)6

C)4

D)1

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15716 Math

A bicycle has two wheels (one large and one small) of 120 cm and 40 cm in diameters. When the large wheel makes 10 revolutions, how many revolutions does the small wheel make in that time?

A)15

B)20

C)30

D)40

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15717 Math

An ambulance travels 10 miles at a speed of 75 mi,es per hour. How fast must the ambulance travel on the return trip if the round-trip travel time is to be 20 minutes?

A)50 mph

B)55 mph

C)60 mph

D)65 mph

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15718 Math

An amount of money was distributed among some people in such a way that it there had been 4 more people, everyone would have got Tk. 16 less. But if there had been 4 less people everyone would have got Tk. 24 more. How many people were there in the group?

A)32

B)24

C)20

D)16

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15719 Math

In a survey, it was found that 65% of the people surveyed watched the news on television, 40% read it on newspaper, and 25% read a newspaper and watched the news on television. What percent of the people surveyed neither watched the news on television nor read a newspaper?

A)10%

B)20%

C)25%

D)30%

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15720 Math

In a certain country, a person is born every 7 seconds and a person dies in every 13 seconds. Therefore, the birth and death rates account for a population growth rate of one person every----

A)4.5 seconds

B)6 seconds

C)15.17 seconds

D)20 seconds

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15721 Math

If (a+a+a)=(b+b+b+b)and (a+b)=7, then what is the value of (a2-b2)?

A)

B)3

C)4

D)7

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15722 Math

Baki lives 2 miles west of Raju's house. Rafiq lives 3 miles north of Raju's house and 2 miles west Diba's house. What is the straight-line distance from Baki's house to Diba's house?

A)5 miles

B)6 miles

C)7 miles

D)10 miles

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15723 Math

On Tuesday, 30 of the students in a class took a test and their average score was 83.5. On Thursday, the other 5 students took the test, and their average score was 94. What was the average for the entire class?

A)83.50%

B)84.50%

C)85%

D)88.20%

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15724 Math

If the average of 7, 13, p and q is 17, what is the average of (p+11) and (q-9)?

A)50

B)25

C)21

D)14

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15725 Math

Reza's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 is to 2 and the ratio of Indian to British stamps is 5 is to 1, what is the ratio of US to British stamps

A)5:01

B)10:05

C)15:02

D)25:02:00

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15726 Math

After being dropped, a certain ball always bounces back to 2/5 of the height of its previous bounce. After the first bounce it reaches a height of 125 inches. How high (in inches) will it reach after its fourth bounce?

A)20

B)15

C)8

D)3.2

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15727 Math

At a particular moment, if the angle between the hour hand and the minute hand of a clock is 105 , what was the time by the clock at that time?

A)6:20

B)6:40

C)3:15

D)3:30

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15728 Math

How may pieces of 85 cm length can be cut from a road 42.5 metres long?

A)30

B)40

C)60

D)None of these

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15729 Math

What decemal of an hour is a second?

A)0.0025

B)0.0256

C)0.00027

D)0.000126

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15730 Math

The last number which is a perfect square and is divisible by each of the numbers 16, 20 and 24, is :

A)1600

B)3600

C)6400

D)14400

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15731 Math

The average of 2, 7, 6 and x is 5 and the average of 18, 1, 6, x and y is 10. What is the value of y?

A)5

B)10

C)20

D)30

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15732 Math

Rakid lives 4km due west of Faisal's house. Asif lives 6km due north of Faisl's house and 4km due west of Hamed's house. What is the minimum distance from Rakib's house to Hamed's house?

A)4km

B)5km

C)8km

D)10km

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15733 Math

If a certain product that sells normally at 59 taka is on sale at two for 99 taka, then how much can Fahim save by purchasing 10 of that product?

A)85 taka

B)90 taka

C)95 taka

D)110 taka

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15734 Math

From the profits of a certain investment, Faisal got 1/3 of the total profit and three of his friends each got 1/3 of the rest. If Faisal and one of his friends got a total of 60000 taka, what was the total profit?

A)90000 taka

B)96000 taka

C)108000 taka

D)135000 taka

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15735 Math

A water tank with 64-gallon capacity is filled by pipe A and emptied by pipe B. If the rate of water flow through pipe A is 2 gallons per hour, how many gallons per hour should flow through pipe B so that when both pipes are open, the initially empty tank shold be full in exactly 96 hours?

A)8-Mar

B)3-Apr

C)3-Feb

D)3-Aug

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15736 Math

If x is an integer divisible by 6 but not by 4, then which of the following CANNOT be an integer?

A)n/2

B)n/3

C)n/12

D)n/10

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15737 Math

Three friends each contributed 8000 taka to buy a computer. If they bought the computer for 19500 taka plus 10% tax, how much money will each of them get back from the inital contribution?

A)1950 taka

B)1500 taka

C)850 taka

D)650 taka

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15738 Math

Rahat completes a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.

A)121 km

B)242 km

C)112 km

D)224 km

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15739 Math

In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is two-third of the number of students of 8 years of age which is 48. what is the total number of students in the school?

A)72

B)60

C)80

D)100

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15740 Math

The ratio of the age of a man and his wife is 4:3. At the time of their marriage the ratio was 5:3 and after 4 years this ratio will become 9:7. How many years ago were they married?

A)12 years

B)6 years

C)3 years

D)2 years

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15741 Math

The area of a rectangular plot is 460 square metres, if the lenght is 15% more than the breadth, what is the breadth of the plot?

A)14 metres

B)20 metres

C)24 metres

D)28 metres

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15742 Math

Hasib took a loan of 1400 tk with simple interest for as many years as the rate of interest. If he paid 126 th as interest at the end of the loan period , what was the rate of interest?

A)3%

B)6%

C)9%

D)12%

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15743 Math

A batsman makes a score of 87 runs in the 17th ining and thus increases his average by 3. What is his average after 17th innings?

A)23

B)34

C)39

D)44

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15744 Math

Two student appeared at an examination. One of them secured 9 makes more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are :

A)39, 30

B)41, 32

C)42, 33

D)43,34

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15745 Math

A die is rolled twice. What is the probability of getting a sum equal to 9?

A)3-Feb

B)9-Feb

C)6-Jan

D)9-Jan

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15746 Math

Two tanks A and B are filled with petrol. Tank A holds 600 liters more than B. If 100 liters of petrol were taken out from each tank, tank A would then contain 3 times as much petrol as tank B. What is the total number of liters of fuel in the two full tanks?

A)1400

B)1200

C)1000

D)900

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15747 Math

Six bells starts ringing logether and ring at intervals of 4, 8, 10, 12, 15 and 20 seconds respectively. How many times will they ring together in 60 minutes?

A)15

B)16

C)30

D)31

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15748 Math

The sum of three digits x, y and z is 12 . What is the largest 3-digit number that can be found using each of the digits exactly once ?

A)912

B)921

C)930

D)1092

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15749 Math

The average mark obtained by 10 students was 6 and the average mark obtained by 6 students was 10. What is the average mark obtained by all 16 students ?

A)10

B)8

C)7.5

D)8.5

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15750 Math

If the product of 3 consecutive integers is 120, the sum of the integers is -

A)12

B)14

C)15

D)18

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