## The ratio between the present ages of P and Q is 6 : 7. If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 years ?

Let P’s age and Q’s age be 6$x$ years and 7$x$ years respectively. Then, 7$x$ – 6$x$ = 4 $x$ = 4 Required ratio = $(6x+4)$ : $(7x+4)$ = 28

## Sachin is younger than Rahul by 4 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin ?

Let Rahul’s age be $x$ years. Then, Sachin’s age = $(x -7)$ years $\frac{x – 7}{x}$ = $\frac{7}{9}$ 9$x$ – 63 = 7$x$ 2$x$ = 63 $x$ = 31.5 Hence,

## Suneel’s age after six years will be three-seventh of his father’s age. Ten years ago, the ratio of their ages was 1 : 5. What is Suneel father’s age at present ?

Let the ages of Suneel and his father 10 years ago be $x$ and 5$x$ years respectively. Suneel’s age after 6 years = $(x+10)$ + 6 = $(x+16)$ years Father’s

## One year ago, the ratio of Gaurav’s and Sachin’s age was 6 : 7 respectively. Four years hence, this ratio would become 7 : 8. How old is Sachin ?

Let Gaurav’s and Sachin’s ages one year ago be 6$x$ and 7$x$ years respectively. Gaurav’s age 4 years hence = $(6x+1)$ + 4 = $(6x+5)$ years Sachin’s age 4 years

Let the son’s present age be $x$ years. Then father’s present age = $\left(3x+3\right)$ years. $\left(3x + 3 + 3\right) = 2\left(x+3\right) + 10$ $3x + 6 = 2x + » Read more ## The product of the ages of Ankit and Nikita is 240. If twice the age of Nikita is more than Ankit’s age by 4 years, what is Nikita’s age ? Let Ankit’s age be$x$years. Then, Nikita’s age =$\frac{240}{x}$years.$2 \times \frac{240}{x} – x = 4480 – x^2 = 4xx^2 + 4x – 480 =
Let Raghu’s present age be $x$ years. Then, Raghu’s age after 15 years = ($x$ + 15)  years. Raghu’s age 5 years back = ($x$ – 5)  years. ($x$+ 15)