The graph shows the number of mini-helicopters sold in 5 days. Study the graph carefully and use it to answer the following questions.
- 210 mini-helicopters were sold from Monday to Friday. How many mini-helicopters were sold on Tuesday?
- The number of mini-helicopters sold on Sunday was four times the number sold on Friday. How many mini-helicopters were sold on Sunday?
(a)
Number of mini-helicopters sold on Tuesday
= 210 - 80 - 40 - 10 - 70
= 10
(b)
Number of mini-helicopters sold on Friday = 70
Number of mini-helicopters sold on Sunday
= 4 x 70
= 280
Answer(s): (a) 10 ; (b) 280