The average of ages of Suman, Kanti and Reena is 30 years, six years f

1.	The average of ages of Suman, Kanti and Reena is 30 years, six years from now the average ages of Suman and Kanti will be 36 years. Find the age of Reena?1. 452. 503. 304. 355. 40
Answer» Correct Answer - Option 3 : 30 Given∶ The average of ages of Suman, Kanti and Reena is 30 years six years from now the average ages of Suman and Kanti will be 36 years Formula used ∶ Average = sum of all the observations / total number of observations Calculations∶ Let the present ages of Suman, Kanti and Reena be S, K and R respectively ⇒ (S + K + R) / 3 = 30 ⇒ S + K + R = 30 × 3 ⇒ S + K + R = 90 ---(1) Also six years from now the average ages of Suman and Kanti will be 36 years, ⇒ [(S + 6) + (K + 6)] / 2 = 36 ⇒ S + K = 60 ---(2) From (1) and (2) we get R = 30 years Hence the age of reena is 30 years.

The average of ages of Suman, Kanti and Reena is 30 years, six years from now the average ages of Suman and Kanti will be 36 years. Find the age of Reena?1. 452. 503. 304. 355. 40

Answer» Correct Answer - Option 3 : 30

Given∶

The average of ages of Suman, Kanti and Reena is 30 years

six years from now the average ages of Suman and Kanti will be 36 years

Formula used ∶

Average = sum of all the observations / total number of observations

Calculations∶

Let the present ages of Suman, Kanti and Reena be S, K and R respectively

⇒ (S + K + R) / 3 = 30

⇒ S + K + R = 30 × 3

⇒ S + K + R = 90 ---(1)

Also six years from now the average ages of Suman and Kanti will be 36 years,

⇒ [(S + 6) + (K + 6)] / 2 = 36

⇒ S + K = 60 ---(2)

From (1) and (2) we get R = 30 years

Hence the age of reena is 30 years.

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