Question

How much is three-quarters of a kilometre less than 1.5 km?

• A. 0.75 km
• B. 2.25 km
• C. 3.0 km
• D. 3.75 km

Answer 1

The correct option is B 2.25 km

We know, 1 km = 1000 m
So, three-quarters of a kilometre = $\frac{3}{4}$ x 1000 m = 750 m
Now,
1.5 km = 1.5 x 1000 m = 1500 m
Add: 1500 - 750 = 750 m
In kilometres, 750 m = $\frac{750}{1000}$ = 0.75 km