Question

Nila is 4 years younger to Mala. If the sum of their ages is 30,
How old is Mala?

Answer 1

Answer:

Nila's age = x

Mala's age = y

x  = y - 4

=> x-y = -4  _____ 1)

x + y = 30 ______ 2)

Adding 1) and 2)

2x = 26

Therefore x = 13

Substituting x in 1)

13 - y = -4

Therefore y = 17

Nila's age = 13 years (Answer)

Mala's age = 17 years (Answer)

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Hope it helps u friend <3