The graph shows the number of mini-helicopters sold in 5 days. Study graph carefully and use it to answer the following questions.
- 310 mini-helicopters were sold from Monday to Friday. How many mini-helicopters were sold on Friday?
- The number of mini-helicopters sold on Sunday was thrice the number sold on Monday. How many mini-helicopters were sold on Sunday?
(a)
Number of mini-helicopters sold on Friday
= 310 - 30 - 60 - 60 - 40
= 120
(b)
Number of mini-helicopters sold on Monday
= 30
Number of mini-helicopters sold on Sunday
= 3 x 30
= 90
Answer(s): (a) 120 ; (b) 90