C-11-Q135mediumsingle_mcq
The ratio of present ages of Arif and Akib is . Arif is years old. After how many years will the ratio be ?
The ratio of present ages of Arif and Akib is . Arif is years old. After how many years will the ratio be ?
- a
- b
- c
- d
ব্যাখ্যা
Present ages are and (since with Arif ). Setting gives , so years.