Question

The sum of the ages of 3 persons is 150 years. 10 years ago their ages were in ratio 7:8:9. Their present age is

Answer 1

Step-by-step explanation:

Sum of 3 persons=150 yrs

10 years ago each sum decreased by 10

It means total decrease=10×3=30

So

Sum 10 yrs ago=150-30=120 yrs

Ratio=7x:8x:9x

Total 24x=120

x=120/24=5

7×5 : 8×5 : 9×5= 35 : 40 : 45

Present age=35+10=45

40+10=50

45+10=55