The sum of square of two numbers is 48 and the square of their difference is 16.the product of the two numbers is :

A 16

B 17

C 18

D 32

Solution

Correct Answer: Option A

মনে করি , সংখ্যাদ্বয় x ও y
 প্রশ্নমতে ,x²+y² =48
 এবং  (x-y)²=16
বা, x²-2xy+y²=16
বা, x²+y²-2xy=16
বা, 48-2xy=16
বা, 48-16=2xy
বা, 32=2xy
বা, 16=xy
∴ xy=16

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions