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 Sunday and Saturday was 61 less than the average number of visitors from Monday to Friday. If the number of visitors on Sunday was 400, how many visitors were there on Saturday?
(a)
Total number of visitors from Monday to Friday last week
= 580 + 660 + 560 + 600 + 740
= 3140
Average number of visitors from Monday to Friday last week
= 3140 ÷ 5
= 628
(b)
Average number of visitors on Saturday and Sunday
= 628 - 61
= 567
Total number of visitors on Saturday and Sunday
= 2 x 567
= 1134
Number of visitors on Saturday
= 1134 - 400
= 734
Answer(s): (a) 628; (b) 734