Question

If a motor boat can travel 10 kms in 1 hour, how far can it travel in five and a half hours?

• A. 40 km
• B. 35 km
• C. 50 km
• D. 55 km

Answer 1

The correct option is D 55 km

Distance covered by the motor boat in one hour = 10 km

Distance covered in half an hour
$=\frac{10\text{km}}{2}$
$=5\text{km}$

Distance covered in five hours
= 5 × distance covered in 1 hour
= 5 × 10 km
= 50 km

Hence, the motor boat can travel as far as 50 km + 5 km = 55 km in five and a half hours.