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 15.
If the average number of sweets 4 children have is 9,
how many sweets do the remaining 16 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 92, how many bars of chocolate does the 6th girl have 







(                    )




3)  

The average number of pens 8 boys have is 41.
If the average number of pens 7 boys have is 35, how many pens does the 8th boy have







(                    )




4)  

Thamarai has 20 boxes of balloons. The average number of balloons for the 20 boxes are 15.
If the average number of balloons for 10 boxes are 8,
how many balloons do the remaining 10 boxes have







(                    )




5)  

The average number of sweets 16 children have is 16.
If the average number of sweets 4 children have is 5,
how many sweets do the remaining 12 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 100, how many bars of chocolate does the 6th girl have 







(                    )




7)  

The average number of pens 8 boys have is 43.
If the average number of pens 7 boys have is 34, how many pens does the 8th boy have







(                    )




8)  

Jeevini has 16 boxes of balloons. The average number of balloons for the 16 boxes are 11.
If the average number of balloons for 8 boxes are 6,
how many balloons do the remaining 8 boxes have







(                    )




9)  

The average number of sweets 12 children have is 15.
If the average number of sweets 4 children have is 3,
how many sweets do the remaining 8 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 97, how many bars of chocolate does the 6th girl have 







(                    )




 

1)  

The average number of sweets 20 children have is 15.
If the average number of sweets 4 children have is 9,
how many sweets do the remaining 16 children have





Answer: 3



SOLUTION 1 :

Step 1: 15 x 20 = 300

Step 2: 9 x 4 = 36

Step 3: 300 - 36 = 264



2)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 92, how many bars of chocolate does the 6th girl have 





Answer: 1



SOLUTION 1 :

Step 1: 105 x 6 = 630

Step 2: 92 x 5 = 460

Step 3: 630 - 460 = 170



3)  

The average number of pens 8 boys have is 41.
If the average number of pens 7 boys have is 35, how many pens does the 8th boy have





Answer: 1



SOLUTION 1 :

Step 1: 41 x 8 = 328

Step 2: 35 x 7 = 245

Step 3: 328 - 245 = 83



4)  

Thamarai has 20 boxes of balloons. The average number of balloons for the 20 boxes are 15.
If the average number of balloons for 10 boxes are 8,
how many balloons do the remaining 10 boxes have





Answer: 1



SOLUTION 1 :

Step 1: 15 x 20 = 300

Step 2: 8 x 10 = 80

Step 3: 300 - 80 = 220



5)  

The average number of sweets 16 children have is 16.
If the average number of sweets 4 children have is 5,
how many sweets do the remaining 12 children have





Answer: 2



SOLUTION 1 :

Step 1: 16 x 16 = 256

Step 2: 5 x 4 = 20

Step 3: 256 - 20 = 236



6)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 100, how many bars of chocolate does the 6th girl have 





Answer: 1



SOLUTION 1 :

Step 1: 105 x 6 = 630

Step 2: 100 x 5 = 500

Step 3: 630 - 500 = 130



7)  

The average number of pens 8 boys have is 43.
If the average number of pens 7 boys have is 34, how many pens does the 8th boy have





Answer: 3



SOLUTION 1 :

Step 1: 43 x 8 = 344

Step 2: 34 x 7 = 238

Step 3: 344 - 238 = 106



8)  

Jeevini has 16 boxes of balloons. The average number of balloons for the 16 boxes are 11.
If the average number of balloons for 8 boxes are 6,
how many balloons do the remaining 8 boxes have





Answer: 3



SOLUTION 1 :

Step 1: 11 x 16 = 176

Step 2: 6 x 8 = 48

Step 3: 176 - 48 = 128



9)  

The average number of sweets 12 children have is 15.
If the average number of sweets 4 children have is 3,
how many sweets do the remaining 8 children have





Answer: 1



SOLUTION 1 :

Step 1: 15 x 12 = 180

Step 2: 3 x 4 = 12

Step 3: 180 - 12 = 168



10)  

The average number of chocolate bars 6 girls have is 105.
If the average number of chocolate bars 5 girls have is 97, how many bars of chocolate does the 6th girl have 





Answer: 3



SOLUTION 1 :

Step 1: 105 x 6 = 630

Step 2: 97 x 5 = 485

Step 3: 630 - 485 = 145