Question

5 yrs ago the average age of Rashi and Saurabh was 20yrs.now the average age of Rashi and Saurabh and Misha is 30 yrs. What will be the age of Misha after 15 yrs?

Answer 1

Answer:

Misha will be 55 after 15 yrs

Step-by-step explanation:

Let Rashi's age 5 yrs ago be R

Let Saurabh's age 5 yrs ago be S

Given, ( R + S ) / 2 = 20

which implies R + S = 40 ------ ( 1 )

Now, 5 years hence both Rashi and Saurabh would have gained 5 years each

Let Misha's age be M

Given, ( R + 5 + S + 5 + M ) / 3 = 30

( R + S + M + 10 ) = 30 × 3

( R + S + M ) = 90 - 10

( R + S + M ) = 80

( 40 + M ) = 80 ------ ( from 1 )

M = 80 - 40

M = 40

So, Misha's present age is 40

She will be ( 40 + 15 ) = 55 after 15 years

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