question_answer

Race-1: Usha run a race in 30 seconds. Ashwini took 28 seconds. Sushma took 20 seconds.

Race-2: Raju run a race in 18 seconds. Prashanth took 24 seconds. Gopal took 27 seconds.

How much time Raju & Ashwini together take to complete the race? (the answer is rounded of to the nearest ten).

A) 40 seconds   

B) 50 seconds  

C) 46 seconds   

D) 45 seconds