1.

The sum of the ages of Subbu and Tobu is 18years and the difference between their ages is 4 years.Find the ages of Subbu and Tobu.

Answer»

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LET the age of subbu be X.
And the age of Tobu be y.

Given :
x + y = 18 -----------(1)

x - y = 4 -----------(2)

On adding EQUATION (1) and (2), we get

x+y+x-y = 18+4

➡ 2x= 22
➡ x = 22/2
➡ x = 11

Now, put the value of x in equation (1)

➡x + y = 18
➡11 + y = 18
➡ y = 18-11
➡ y = 7


Therefore, the age of subbu = x = 11 years.
And the age of Tobu = y = 7 years.

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