The sum of two number is 25 and their difference is 13. Find their product.
A. 104
B. 114
C. 315
D. 325
Answer: Option B
Solution (By Examveda Team)
Let the numbers be x and yThen, x + y = 25 and x - y = 13
4xy = (x + y)2 - (x- y)2
= (25)2 - (13)2
= (625 - 169)
= 456
∴ xy = 114
This Question Belongs to Arithmetic Ability >> Problems On Numbers
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Which formula you used in this sir
sum of two numbers is 25 and their product -150 what are the numbers