Question

How old will be the raju if ratio of his age and one of his twin grandsons'is 11:2 and average age of his and his both grandsons is 50 years?

a. 110 years
b. 150 years
c. 72 years
d. 75 years

Answer 1

If the ratio of Raju's age to one of his twin grandsons' age is 11:2 and their average age is 50, then Raju's age is 110 years.

Step-by-step explanation:

If the ratio of Raju's age to one of his twin grandsons' age is 11:2, we can set up the following equation:

Raju's age / Grandson's age = 11/2

Let's say Raju's age is R and one of his twin grandson's age is G. We can rewrite the equation as:

R / G = 11/2

Given that the average age of Raju and his twin grandsons is 50 years, we can set up the following equation:

(R + G + G) / 3 = 50

With these two equations, we can solve for Raju's age. Let's substitute the value of G in terms of R using the first equation:

R / (11R/2) = 50

2R / 11R = 50

2 / 11 = 50

2 = 550

Raju's age is 110 years.