At present, the ratio between the ages of Arun and Deepak is 4: 3. After 6yr, Arun's age will be 26 yr. What is the age of Deepak at present?

Options

A. a. 12 yr
B. b. 15 yr
C. c. `19 1/2 `yr
D. d. 25 yr

Answer

B

Explanation

Let the present ages of Arun and Deepak be `4x yr `and `3x yr` respectively.
Then, `4x + 6 = 26`
`implies 4x = 20`
` x = 5`
`therefore` Deepak.s present age =`3x = 3 xx 5 = 15 yr `