Question

The height of participants for a school event are:
Alex - 152 cm
Allen - 164 cm
Karan - 1 m 18 cm
Jimmy - 1m 35 cm

What is the difference between the heights of the tallest and the shortest participant?

• A. 35 cm
• B. 15 cm
• C. 46 cm
• D. 22 cm

Answer 1

The correct option is C 46 cm

Let's convert the lengths into the same unit $\left(\text{cm}\right)$ to make the comparison easier.
Height of Alex = 152 cm
Height of Allen = 164 cm
( 1 m = 100 cm)
Height of Karan = 1 m 18 cm= 100 cm + 18 cm = 118 cm
Height of Jimmy = 1 m 35 cm = 100 cm + 35 cm = 135 cm

We can clearly see that 118 cm is the shortest and 164 cm is the tallest.
Difference between the heights of the tallest and the shortest participants = 164 cm - 118 cm
= 46 cm