Question

A school with 20 sections has 160 students. Find the number of pupils in each section if they are equal.

• A. $8$
• B. $6$
• C. $10$

Answer 1

The correct option is A $8$

Total number of students $=160$
There are $20$ students in a section.

Number of students in each section = $\frac{\text{total number of students}}{20}=\frac{160}{20}$

Solving by repeated subtraction method:

Steps	Dividend	Divisor	Operation
1	160	20	160 - 20 = 140
2	140	20	140 - 20 = 120
3	120	20	120 - 20 = 100
4	100	20	100 - 20 = 80
5	80	20	80 - 20 = 60
6	60	20	60 - 20 = 40
7	40	20	40 - 20 = 20
8	20	20	20 - 20 = 0

Since we subtracted $8$ times to reach $0$
Therefore, there are $8$ students in each section.