23
a) Saima can blow 15 ballons
in 20 minutes. Sara con blow 19
balloons in 25 minutes, Ahmed
can blow 16 balloons in 21 minutes
and bilal can blow 12 balloons in
23 minutes assuming that all
balloons are blown to the same
size, who can balloons at the fastest rate
Answers
Correct Question :
Saima can blow 15 ballons in 20 minutes. Sara can blow 18 balloons in 25 minutes, Ahmed can blow 16 balloons in 21 minutes and Bilal can blow 12 balloons in 23 minutes assuming that all balloons are blown to the same size, who can blow at the fastest rate?
----------------------
Before, finding the answer. Let's find out how we can find the answer.
- In this question, we are asked to find who can blow the balloons at the fastest rate.
- So, to find that, we have to use the following formula :
➵ Speed = Number of Balloons/Time
__________________
Given :
- Saima can blow 15 ballons in 20 minutes.
- Sara can blow 19 balloons in 25 minutes.
- Ahmed can blow 16 balloons in 21 minutes.
- Bilal can blow 12 balloons in 23 minutes
To find :
- who can blow at the fastest rate
Solution :
⇒ Let's find the Speed of each person.
Saima's Speed = Number of Balloons/Time
= 15/20
= 0.75
Sara's Speed = Number of Balloons/Time
= 18/25
= 0.72
Ahmed's Speed = Number of Balloons/Time
= 16/21
= 0.76
Bilal's Speed = Number of Balloons/Time
= 12/23
= 0.52
Therefore, Ahmed can blow balloons at the fastest rate.