PSLE The bar graph shows the number of visitors to a museum 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 134 more than the average number of visitors from Monday to Friday. If the number of visitors on Sunday was 110, how many visitors were there on Saturday?
(a)
Total number of visitors from Monday to Friday last week
= 70 + 140 + 140 + 85 + 115
= 550
Average number of visitors from Monday to Friday last week
= 550 ÷ 5
= 110
(b)
Average number of visitors on Saturday and Sunday
= 110 + 134
= 244
Total number of visitors on Saturday and Sunday
= 2 x 244
= 488
Number of visitors on Saturday
= 488 - 110
= 378
Answer(s): (a) 110; (b) 378