Pie chart - Jamb Mathematics Past Questions and Answers

Question 16:

• JAMB 1990

4, 16, 30, 20, 10, 14 and 26 are represented on a pie chart. Find the sum of the angles of the bisectors representing all numbers equals to or greater than 16

A. 48^o
B. 84^o
C. 92^o
D. 276^o

Question 17:

• JAMB 1991

3% of a family's income is spent on electricity, 59% on food, 20% on transport, 11% on education and 7% on extended family. The angles subtended at the centre of the pie chart under education and food are respectively

A. 76.8^o and 25.2^o
B. 10.8^o and 224.6^o
C. 112.4^o and 72.0^o
D. 39.6^o and 212.4^o

Question 18:

• JAMB 1992

A store keeper checked his stock of five commodities and arrived at the following statics
\(\begin{array}{c|c} Comoditiy & Quantity\\ \hline F & 125\\ G & 113\\ H & 108\\ K & 216 \\ M & 68\end{array}\)
What angle will commodity H represent on a pie chart?

A. 216^o
B. 108^o
C. 68^o
D. 54^o

Question 19:

• JAMB 1993

Quantities in the proportions 1, 4, 6, 7 are to be represented in a pie chart. Calculate the angle of the sector with proportion 7

A. 20^o
B. 80^o
C. 120^o
D. 140^o

Question 20:

• JAMB 1995

\(\begin{array}{c|c} \text{Age in years} & 13 & 14 & 15 & 16 & 17 \\ \hline \text{No. of students} & 3 & 10 & 30 & 42 & 15\end{array}\)
The frequency distribution above shows the ages of students in a secondary school. In a pie chart constructed to represent the data, the angles corresponding to the 15 years old is

A. 27^o
B. 30^o
C. 54^o
D. 108^o