PSLE The bar graph shows the number of visitors to a theme park from Monday to Friday last week.
- What was the average number of visitors from Monday to Friday last week?
- The average number of visitors on Saturday and Sunday was 89 more than the average number of visitors from Monday to Friday. If the number of visitors on Saturday was 100, how many visitors were there on Sunday?
(a)
Total number of visitors from Monday to Friday last week
= 160 + 165 + 195 + 195 + 130
= 845
Average number of visitors from Monday to Friday last week
= 845 ÷ 5
= 169
(b)
Average number of visitors on Saturday and Sunday
= 169 + 89
= 258
Total number of visitors on Saturday and Sunday
= 2 x 258
= 516
Number of visitors on Sunday
= 516 - 100
= 416
Answer(s): (a) 169; (b) 416