Question

if a bus can travel 18miles in 90 minutes, how far can it travel in 21 minutes​

Answer 1

Given :

• Bus travel 18 miles in 90 minutes

To find :

Distance traveled by bus in 21 minutes

Formula used :

• v = s/t

Here,

• v = speed
• s = distance traveled
• t = time taken

Solution :

First of all from given information we will find speed whit which bus is moving.

Speed of bus = Distance traveled by bus ÷ time taken

➝ Speed of bus = 18miles ÷ 90 minutes

➝ Speed of bus = (18/90) miles/minutes

➝ Speed of bus = (1/5) miles/minutes

➝ Speed of bus = 0.2 miles/minutes

________________________________

Now , we know that

• speed of bus = 0.2 miles/minutes
• Time taken = 21 minutes
• Distance = ?

Therefore, using speed = distance/time

➝ 0.2miles/minutes = Distance traveled by bus / 21 minutes

➝ Distance traveled by bus = (0.2 miles/minutes)× 21 minutes

➝ Distance traveled by bus = 0.2 × 21 miles

➝ Distance traveled by bus = 4.2 miles

________________________________

ANSWER : 4.2 miles