Q77 of 107 Page 104

After 25 years, Rama will be 5 times as old as he is now. Find his present age.

Let the Rama’s present age be x yr.


Then, Rama’s age after 25 yr = (x + 25) yr.


It is given that after 25 yr, Rama’s age will be 5 times his present age.


Therefore, the equation is x + 25 = 5x


⇒ 25 = 5x – x


⇒ 25 = 4x


⇒ [Divide by 4 both sides]


⇒


⇒


Hence, the present age of Rama is yr.


More from this chapter

All 107 →
75

9 added to twice a number gives 13. Find the number.

 76

1 subtracted from one–third of a number gives 1. Find the number.

 78

After 20 years, Manoj will be 5 times as old as he is now. Find his present age.

 79

My younger sister's age today is 3 times, what it will be 3 years from now minus 3 times what her age was 3 years ago. Find her present age.