Question

Mark (✓) against the correct answer
In a race, Raghu covers 5 km in 20 minutes, how much distance will he cover in 50 minutes?

(a) 10.5 km
(b) 12 km
(c) 12.5 km
(d) 13.5 km

Answer 1

Distance covered in 20 min = 5 km
Distance covered in 1 min = $\frac{5}{20}$ km [less time, less distance covered]
Distance covered in 50 min = $\frac{5}{20}\times 50$ = 12.5 km [more time, more distance covered]
Hence, Raghu will cover a distance of 12.5 km in 50 minutes.

Thus, the correct option is (c).