1.

The difference of square of two numbers is 45 and the differences of the number are 3 then find the sum of numbers?1. 152. 123. 184. 20

Answer» Correct Answer - Option 1 : 15

Given:

The difference of square of two numbers is 45 and the differences of the numbers are 3

Formula used:

(a2 – b2) = (a + b) × (a - b)

Calculation:

According to the question the difference of square of two numbers is 45

∴ (a2 – b2) = 45

And the differences of the numbers are 3

∴ (a - b) = 3

Now, put the values in the given identity

∴ 45 = (a + b) × 3

⇒ (a + b) = 45/3 = 15

Hence, option (1) is correct



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