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 148 more than the average number of visitors from Monday to Friday. If the number of visitors on Saturday was 135, how many visitors were there on Sunday?
(a)
Total number of visitors from Monday to Friday last week
= 90 + 125 + 130 + 80 + 70
= 495
Average number of visitors from Monday to Friday last week
= 495 ÷ 5
= 99
(b)
Average number of visitors on Saturday and Sunday
= 99 + 148
= 247
Total number of visitors on Saturday and Sunday
= 2 x 247
= 494
Number of visitors on Sunday
= 494 - 135
= 359
Answer(s): (a) 99; (b) 359