A water tank fills up to 3/8 of its capacity in 15 minutes. How long will it take to fill the entire tank?
Show answer & explanation
Correct answer: C
Explanation
Fraction filled in 15 minutes = 3/8
Time required to fill the entire tank (1) = 15 × (1 ÷ 3/8)
= 15 × (8/3)
= 120/3
= 40 minutes