A survey was conducted in a school of
731
students to find out the fruits they liked. Their choices are represented on the pie chart below.
(a) How many students like
pineapples
?
Give your answer
correct to the
nearest whole number.
(b) What percentage of the students like
watermelons
?
Give your answer
correct to
1 decimal place.
(a)
students
(b)
%
Answers
Answered by
1
Step-by-step explanation:
The correct option is A 45
In the given pie chart, the central angle of the sector corresponding to oranges is
90
∘
, and it is given that 30 students like oranges.
Hence,
90
∘
represents 30 students. We know that the full circle (
360
∘
) represents the entire class.
⟹
Total number of students
=
360
∘
90
∘
×
30
=
120.
Note that the central angle of the sector corresponding to pineapples is
135
∘
.
∴
Number of students who like pineapples
=
135
∘
360
∘
×
120
=
45.
Similar questions