Question

Saima can blow 15 balloons 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

balloons at the fastest rate?​

Answer 1

ANSWER:

• Ahmed can blow the balloons at the fastest rate

GIVEN:

• Saima can blow 15 balloons in 20 minutes.

• Sara can blow 18 balloons in 25 minutes.

• Ahmed can blow 16 balloons in 21 minutes.

• Bilal can blow 12 balloons in 23 minutes.

• All balloons are blown to the same size.

TO FIND:

• Who can blow balloons at the fastest rate.

EXPLANATION:

This is a rate based problem we want to find who blows more number of balloons per minute.

Saima:

• Blows 15 balloons in 20 minutes.

• Rate = 15/20 = 3/4 = 0.75 balloons/min.

Sara:

• Blows 18 balloons in 25 minutes.

• Rate = 18/25 = 3.6/5 = 0.72 balloons/min.

Ahmed:

• Blows 16 balloons in 21 minutes.

• Rate = 16/21 = 0.76 balloons/min.

Bilal:

• Blows 12 balloons in 23 minutes.

• Rate = 12/23 = 0.52 balloons/min.

Ahmed's rate is faster than the other three.

Ahmed can blow the balloons at the fastest rate.

Answer 2

Given :-

Saima can blow 15 balloons 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.

To Find :-

Who can blow  balloons at the fastest rate?​

Solution :-

So, We need to find at first the time taken by all people to fill 1 balloon

For Saima

Speed of saima = Balloon blowed/Time taken

Speed of Saima  = 15/20

Speed of Saima = 0.75 ballon per minutes

For Sara

Speed of Sara = Balloon blowed/Time taken

Speed of Sara = 18/25

Speed of sara = 0.72 balloon  per minute

For Ahmed

Speed of Ahmed = Balloon blowed/Time taken

Speed of Ahmed = 16/21

Speed of Ahmed = 0.76 balloon per minute

For Bilal

Speed of Bilal = Balloon blowed/Time taken

Speed of Bilal = 12/23

Speed of Billal = 0.52

So,

Ahmed is the fastest balloon blower.