# The table above shows the number of pupils in a class with respect to their ages

Age in years | 7 | 8 | 9 | 10 | 11 |

No of pupils | 4 | 13 | 30 | 44 | 9 |

**The table above shows the number of pupils in a class with respect to their ages. If a pie chart is constructed to represent the age, the angle corresponding to 8 years old is…**

- A.
**13°** - B.
**46.8°** - C.
**56.3°** - D.
**48.6°**

**QUICK ANSWER…**

**B**

**SOLUTION****… **** **

**The total angle at the center of a pie chart is 360°****,**

**To calculate the angle corresponding to the age of 8, we find the ration of the number of people with age 8 to the total number of pupils in the class, and then multiply by 360.**

**Total number of pupils in the class = 4 + 13 + 30 + 44 + 9 = 100**

**The fraction of 360°****, that will be given for age 8 will be:**

**(13/100) X 360 = 46.8°**

**Now for the right answer to the above question:**

**Option A is incorrect.****Option B is correct.****C is incorrect.****D is not the correct answer.**

**QUICK TIPS…**

**You may please note the****se/this****:**

**Angle corresponding to any number in a pie chart can be gotten by finding the ratio of this number to the total, and then multiply by 360.**

**Use the questions and answer session to correct, express, and deal further on this topic.**

**/****culled from ****201****9**** JAMB-UTME ****mathematics ****question**** 4****/**