Question

the age of pranjul and niyaz are in the ratio of 9:8 respectively.After 5 yrs their ratio will be 10:9.What is the difference in years between their ages

Answer 1

9:8=45:40

lets consider pranjul age as 45 and niyaz age as 40

after 5 yrs pranjul age=50,niyaz age=45

ratio of their ages =50:45

i.e 10:9.

Answer 2

Answer:

The age of pranjul = 9x

The age of niyaz. =8x

After 5 years

Panjul = 9x+5

Niyaz. =8x+5

Equation:

9x+5.

_____ 10 / 9

8x+5

9(9x+5) = 10 (8x+5)

81x+45. = 80 x + 50

81x-80x. = 50-45

x. = 5

The present age of Punjul = 9x =9X5 = 45

[ ⬆️write the same equation ]Niyaz=8x=8X5 = 40