Question

The ratio of the ages of a,b,c is 7:5:4. if c's age is 32 years,find the sum of the ages of a,b and c(in years)

Answer 1

let the ratio be 7x ,5x and 4x . now c = 32
A.T.Q.
4x= 32
x=32/4=8
now u can put the value of x like
7(8)+5(8)+4(8)= ur ans

Answer 2

Answer: The sum of ages of a, b, c is 128 years.

Step-by-step explanation:

Since we have given that

Ratio of ages of a, b, c is 7 : 5 : 4.

Let the age of a be 7x.

Let the age of b be 5x.

Let the age of c be 4x.

Since we have the age of c = 32 years.

According to question, it becomes,

$4x=32\\\\x=\dfrac{32}{4}\\\\x=8$

So, the sum of the ages of a, b, and c is given by

$7x+5x+4x\\\\=16x\\\\=16\times 8\\\\=128\ years$

Hence, the sum of ages of a, b, c is 128 years.