Scroll:Data Analysis >> Average of a Set of Data >> mcq (2878)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

The average number of sweets 20 children have is 11.
If the average number of sweets 2 children have is 9,
how many sweets do the remaining 18 children have







(                    )




2)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 98, how many bars of chocolate does the 6th girl have 







(                    )




3)  

Pavi has 18 boxes of balloons. The average number of balloons for the 18 boxes are 12.
If the average number of balloons for 4 boxes are 2,
how many balloons do the remaining 14 boxes have







(                    )




4)  

The average number of pens 8 boys have is 40.
If the average number of pens 7 boys have is 38, how many pens does the 8th boy have







(                    )




5)  

The average number of sweets 18 children have is 13.
If the average number of sweets 2 children have is 5,
how many sweets do the remaining 16 children have







(                    )




6)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 93, how many bars of chocolate does the 6th girl have 







(                    )




7)  

Pavi has 12 boxes of balloons. The average number of balloons for the 12 boxes are 13.
If the average number of balloons for 10 boxes are 6,
how many balloons do the remaining 2 boxes have







(                    )




8)  

The average number of pens 8 boys have is 44.
If the average number of pens 7 boys have is 38, how many pens does the 8th boy have







(                    )




9)  

The average number of sweets 14 children have is 16.
If the average number of sweets 8 children have is 3,
how many sweets do the remaining 6 children have







(                    )




10)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 90, how many bars of chocolate does the 6th girl have 







(                    )




 

1)  

The average number of sweets 20 children have is 11.
If the average number of sweets 2 children have is 9,
how many sweets do the remaining 18 children have





Answer: 4



SOLUTION 1 :

Step 1: 11 x 20 = 220

Step 2: 9 x 2 = 18

Step 3: 220 - 18 = 202



2)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 98, how many bars of chocolate does the 6th girl have 





Answer: 3



SOLUTION 1 :

Step 1: 105 x 6 = 630

Step 2: 98 x 5 = 490

Step 3: 630 - 490 = 140



3)  

Pavi has 18 boxes of balloons. The average number of balloons for the 18 boxes are 12.
If the average number of balloons for 4 boxes are 2,
how many balloons do the remaining 14 boxes have





Answer: 1



SOLUTION 1 :

Step 1: 12 x 18 = 216

Step 2: 2 x 4 = 8

Step 3: 216 - 8 = 208



4)  

The average number of pens 8 boys have is 40.
If the average number of pens 7 boys have is 38, how many pens does the 8th boy have





Answer: 3



SOLUTION 1 :

Step 1: 40 x 8 = 320

Step 2: 38 x 7 = 266

Step 3: 320 - 266 = 54



5)  

The average number of sweets 18 children have is 13.
If the average number of sweets 2 children have is 5,
how many sweets do the remaining 16 children have





Answer: 2



SOLUTION 1 :

Step 1: 13 x 18 = 234

Step 2: 5 x 2 = 10

Step 3: 234 - 10 = 224



6)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 93, how many bars of chocolate does the 6th girl have 





Answer: 1



SOLUTION 1 :

Step 1: 105 x 6 = 630

Step 2: 93 x 5 = 465

Step 3: 630 - 465 = 165



7)  

Pavi has 12 boxes of balloons. The average number of balloons for the 12 boxes are 13.
If the average number of balloons for 10 boxes are 6,
how many balloons do the remaining 2 boxes have





Answer: 1



SOLUTION 1 :

Step 1: 13 x 12 = 156

Step 2: 6 x 10 = 60

Step 3: 156 - 60 = 96



8)  

The average number of pens 8 boys have is 44.
If the average number of pens 7 boys have is 38, how many pens does the 8th boy have





Answer: 1



SOLUTION 1 :

Step 1: 44 x 8 = 352

Step 2: 38 x 7 = 266

Step 3: 352 - 266 = 86



9)  

The average number of sweets 14 children have is 16.
If the average number of sweets 8 children have is 3,
how many sweets do the remaining 6 children have





Answer: 1



SOLUTION 1 :

Step 1: 16 x 14 = 224

Step 2: 3 x 8 = 24

Step 3: 224 - 24 = 200



10)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 90, how many bars of chocolate does the 6th girl have 





Answer: 3



SOLUTION 1 :

Step 1: 105 x 6 = 630

Step 2: 90 x 5 = 450

Step 3: 630 - 450 = 180