PSLE The bar graph shows the number of visitors to a tourist attraction 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 65 less than the average number of visitors from Monday to Friday. If the number of visitors on Sunday was 520, how many visitors were there on Saturday?
(a)
Total number of visitors from Monday to Friday last week
= 640 + 560 + 740 + 240 + 780
= 2960
Average number of visitors from Monday to Friday last week
= 2960 ÷ 5
= 592
(b)
Average number of visitors on Saturday and Sunday
= 592 - 65
= 527
Total number of visitors on Saturday and Sunday
= 2 x 527
= 1054
Number of visitors on Saturday
= 1054 - 520
= 534
Answer(s): (a) 592; (b) 534