Question

In 12 years, the sum of four friends ages will be 100 years in total. What will be the sum of their ages in 8 years

Answer 1

Answer:

8+8+8+8=32 is the answer of the question

Answer 2

SOLUTION

GIVEN

In 12 years, the sum of four friends ages will be 100 years in total.

TO DETERMINE

The sum of their ages in 8 years

EVALUATION

Let the present ages of the four friends are a , b, c, d

By the given condition

( a + 12 ) + ( b + 12 ) + ( c + 12) + ( d + 12 ) = 100

⇒ a + b + c + d + 48 = 100

⇒ a + b + c + d = 52

Hence the required sum of their ages in 8 years

= ( a + 8 ) + ( b + 8 ) + ( c + 8 ) + ( d + 8 )

= a + b + c + d + 32

= 52 + 32

= 84 years

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