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 Saturday and Sunday was 159 more than the average number of visitors from Monday to Friday. If the number of visitors on Saturday was 150, how many visitors were there on Sunday?
(a)
Total number of visitors from Monday to Friday last week
= 145 + 105 + 175 + 135 + 65
= 625
Average number of visitors from Monday to Friday last week
= 625 ÷ 5
= 125
(b)
Average number of visitors on Saturday and Sunday
= 125 + 159
= 284
Total number of visitors on Saturday and Sunday
= 2 x 284
= 568
Number of visitors on Sunday
= 568 - 150
= 418
Answer(s): (a) 125; (b) 418