Question
The sum of two numbers is 25 and their difference is 13. Find their product?
The sum of two numbers is 25 and their difference is 13. Find their product?
Answer: Option B
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Let the numbers be x and y.
Then,x+y = 25 and x-y = 13.
4xy =(x + y)2-(x - y)2
=>(25)2-(13)2
=> 625-169=456
=> xy=114.
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