PSLE A group of pupils was asked to choose one spaghetti set from turkey, tuna, vegetarian and beef. The table represents the pupils' choices. The pupils' choices were also represented by a bar graph but the names of the spaghetti sets were not shown. What was the total number of pupils who chose turkey and vegetarian spaghetti sets?
Spaghetti Sets |
Pupils |
Turkey |
10% |
Tuna |
20% |
Vegetarian |
45% |
Beef |
25% |
Number of pupils who chose turkey spaghetti sets is the least. So it is represented by the shortest bar.
Number of pupils who chose turkey spaghetti sets = 20
10% of pupils = 20
1% of pupils = 20 ÷ 10 = 2
Percent of pupils who chose turkey spaghetti sets = 10%
Percent of pupils who chose vegetarian spaghetti sets = 45%
Percent of pupils who chose turkey and vegetarian spaghetti sets
= 10% + 45%
= 55%
Total number of pupils who chose turkey and vegetarian spaghetti sets
= 55 x 2
= 110
Answer(s): 110