Question

An object moves at a speed of 20 yards per second.

What is the object's speed, in feet per second?
(1 yard = 3 feet)
A) 17
B) 23
C) 50
D) 60

Answer 1

Let's see

`\\ \rm\Rrightarrow speed=20yd/s`

• See unit given to change is ft/s
• So only numerator we need to change

`\\ \rm\Rrightarrow Speed=20(3)=60ft/s`

Option D