Solved Questions on Data Handling
Direction(1-2): The following pictograph shows the number of watches sold by a wholesaler in a particular week.
1. How many extra watches were sold on Saturday than on Wednesday?
a) 1175
b) 1625
c) 2775
d) 3225
Answer: b) 1625
Explanation: 
Number of watches sold on Wednesday = (3 × 500) + 125
= 1500 + 125
= 1625
Number of watches sold on Saturday = (6 × 500) + 250
= 3000 + 250
= 3250
Number of extra watches were sold on Wednesday rather than on Saturday = 3250 − 1625
= 1625
2. What is the total amount of watches sold on Tuesday if the selling price of each watch is $9.35?
a) $20137.50
b) $21,037.50
c) $21,087.50
d) $21,137.50
Answer: b) $21,037.50
Explanation: Number of watches sold on Tuesday = (4 × 500) + 250
= 2000 + 250
= 2250
Selling price of 1 watch = $9.35
Selling price of 2250 watches = $9.35 × 2250 = $21037.50
Direction(3-4): The bar graph shows the number of tickets of a circus sold during a fair by six agents A, B, C, D, E and F.
3. How many tickets of a circus were sold by agents A, C, D and F together?
a) 
b) 
c) 
d) 
Answer: c) 
Explanation: Number of tickets sold by agent A = 16 tickets
Number of tickets sold by agent C = 20 tickets
Number of tickets sold by agent D = 7 tickets
Number of tickets sold by agent F = 14 tickets
Total number of tickets of a circus sold by agents A, C, D and F taken together = 16 + 20 + 7 + 14 = 57 tickets
57 tickets sold in tally marks = 
4. What is the average number of tickets of a circus sold per agent?
a) 15 tickets
b) 25 tickets
c) 35 tickets
d) 40 tickets
Answer: a) 15 tickets
Explanation: Number of agents (A, B, C, D, E and F) = 6 agents
Total number of tickets of a circus were sold by agents A, B, C, D, E and F taken together = 16 + 9 + 20 + 7 + 24 + 14
= 90 tickets
Average number of tickets of a circus sold per agent = Total number of tickets sold/Number agents
= 90/6
=15 tickets
5. The pie chart provides details about the different activities performed by Alena on Sunday.
What is the total time spent by Alena on performing all these activities if she reads a book for 3 hours?
a) 5 hours
b) 10 hours
c) 15 hours
d) 20 hours
Answer: b) 10 hours
Explanation: Let the total time spent by Alena on performing all these activities be x hours.
Time spent on reading the book = 3 hours
⇒ 30% of Total time = 3 hours
⇒ 30/100 × x = 3 hours
⇒ x = 3 × 100/30 hours
⇒ x = 10 hours
