PSLE The bar graph shows the number of visitors to a safari 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 53 less than the average number of visitors from Monday to Friday. If the number of visitors on Sunday was 560, how many visitors were there on Saturday?
(a)
Total number of visitors from Monday to Friday last week
= 400 + 680 + 620 + 300 + 760
= 2760
Average number of visitors from Monday to Friday last week
= 2760 ÷ 5
= 552
(b)
Average number of visitors on Saturday and Sunday
= 552 - 53
= 499
Total number of visitors on Saturday and Sunday
= 2 x 499
= 998
Number of visitors on Saturday
= 998 - 560
= 438
Answer(s): (a) 552; (b) 438