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Q2
A salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20%, while his sales increase by 10%. What is the radio of his new profit to his usual profit?
Q3
A clock strikes once at 1 O'clock, twice at 2 O'clock twice at 2 O'clock, thrice at 3 O'clock and so on. How many times will it strike in 24 hours
Q4
The primeter of a rectangle is 26 cm. The rectangle is 26 cm. The rectangle is coverted to a square by tripling the width and talking a quarter of the length
Q5
In an examination, 34% of the students failed in mathematics and 42% failed in English. If 20% of the student failed in both the subjects, them find the percentage of students who passed in both the subjects.
Q6
125 gallon of a mixture contain 20% water. What amount of additional water should be added such that water content is raised to 25%?
Q7
At a symposium 20% of the professors are psychologist, 60% are biologist and the remaining 12 professors are economist. If 20 of the professors wear glasses, what percent of the professors do not glasses?
Q8
In a department 3/5 of the workers are men and the rest women. If 1/2 of the men and 3/7 of the women in the department are over 35, what fraction of all the worker in the department are over 35?
Q9
The ratio of investments of two partners P and Q is 7: 5 and ratio of thier profits is 7: 10. If P invested the money for months, find for how time did Q invest the money .
Q10
If w is 10% less than x, and y is 30% less than z, they wy is what percent less than xz?