PSLE A group of pupils was asked to choose one noodle set from tuna, turkey, vegetarian and beef. The table represents the pupils' choices. The pupils' choices were also represented by a bar graph but the names of the noodle sets were not shown. What was the total number of pupils who chose vegetarian and tuna noodle sets?
Noodle Sets |
Pupils |
Tuna |
20% |
Turkey |
50% |
Vegetarian |
5% |
Beef |
25% |
Number of pupils who chose vegetarian noodle sets is the least. So it is represented by the shortest bar.
Number of pupils who chose vegetarian noodle sets = 20
5% of pupils = 20
1% of pupils = 20 ÷ 5 = 4
Percent of pupils who chose tuna noodle sets = 20%
Percent of pupils who chose turkey noodle sets = 50%
Percent of pupils who chose tuna and turkey noodle sets
= 20% + 50%
= 70%
Total number of pupils who chose vegetarian and tuna noodle sets
= 70 x 4
= 280
Answer(s): 280