Q1.
Big electric autorickshaws run in small towns of India and can carry 8 passengers. How many people can travel in 125 such autos in a single round?
Answer 100 autorickshaws with 8 passengers each. 20 autorickshaws with 8 passengers each. 5 autorickshaws with 8 passengers each.
1000 people can travel in 125 autorickshaws in a single round.
125 autos = 100 autos + 20 autos + 5 autos
100 autos: 100 × 8 = 800 passengers
20 autos: 20 × 8 = 160 passengers
5 autos: 5 × 8 = 40 passengers
125 autos: 800 + 160 + 40 = 1000 passengers
100 autos: 100 × 8 = 800 passengers
20 autos: 20 × 8 = 160 passengers
5 autos: 5 × 8 = 40 passengers
125 autos: 800 + 160 + 40 = 1000 passengers
| × | 8 |
|---|---|
| 100 | 100 × 8 = 800 |
| 20 | 20 × 8 = 160 |
| 5 | 5 × 8 = 40 |
| 1000 |
The book’s table for 125 × 8.
Why it happens: 125 splits neatly into hundreds, tens and ones. Each part is easy to multiply by 8, and the three answers are added at the end.