Aptitude:: Problems on Numbers

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What is the sum of two consecutive even numbers, the difference of whose squares is 84?

A. 34 B. 38
C. 42 D. 46

The sum of two number is 25 and their difference is 13. Find their product.

A. 104 B. 114
C. 315 D. 325

A number consists of 3 digits whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is:

A. 145 B. 253
C. 370 D. 352

The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is

A. 20 B. 23
C. 169 D. None of these

The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is:

A. 380 B. 395
C. 400 D. 425

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