Aptitude Question of the Day

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Today's Aptitude Question

And here is your question...

  • The sum of two numbers is 35 and the difference of their squares is 140. What is the difference between the numbers?




Let the numbers be a and b. Then,

a+b = 35 & a2 – b2 = 140.

a-b = (a2-b2)/(a+b) = 140/35 = 4

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