Question

After recording the height and weight, Ted wanted to know who is taller between him and Ned.

Ned's height is 135 cm and Ted’s height is 4.5 ft.

Given 1 foot = 0.3 meters, what will be the ratio of Ned's height to Ted's height?

• A. units
• B. unit
• C. 1 : 1
• D. 1 : 0.8

Answer 1

The correct option is C

1 : 1

To compare two similar quantities, their units must be same. Ned’s height is in cm and Ted’s height is in ft.

In order to compare their heights, we need to convert both the heights to the same unit - cm.

Thus, $4.5ft=4.5\times 0.3m=1.35m$

Now, 1m = 100 cm

Thus, $4.5ft=1.35m=1.35\times 100cm=135cm$

$\therefore$ Ned's height : Ted's height = 135 : 135 = 1 : 1