PSLE The bar graph shows the number of visitors to a stadium 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 13 less than the average number of visitors from Monday to Friday. If the number of visitors on Saturday was 460, how many visitors were there on Sunday?
(a)
Total number of visitors from Monday to Friday last week
= 800 + 500 + 740 + 680 + 600
= 3320
Average number of visitors from Monday to Friday last week
= 3320 ÷ 5
= 664
(b)
Average number of visitors on Saturday and Sunday
= 664 - 13
= 651
Total number of visitors on Saturday and Sunday
= 2 x 651
= 1302
Number of visitors on Sunday
= 1302 - 460
= 842
Answer(s): (a) 664; (b) 842