Question:

Level 1

A man can paint the house in 3 days. Assuming the same speed, how many days do 2 men take to paint the same house? Express your answer in decimal.

1 m
A man can paint the house in 3 days. Assuming the same speed, how many days do 2 men take to paint the same house? Express your answer in decimal.

Level 2

Jane takes 2 h to travel from City A to City B. Joanne takes 3 h to travel from City B to City A. How long would Jane and Joanne take to meet along the way? Express your answer as decimals in h.

2 m
Jane takes 2 h to travel from City A to City B. Joanne takes 3 h to travel from City B to City A. How long would Jane and Joanne take to meet along the way? Express your answer as decimals in h.

Level 2

Abel can paint a room in 6 hours. Bala can paint the same room in 3 hours. How long will it take for both of them to paint the same room together?

2 m
Abel can paint a room in 6 hours. Bala can paint the same room in 3 hours. How long will it take for both of them to paint the same room together?

Level 2

Adam builds a toy car in 3 hours.

Bryan builds a toy car in 6 hours.

If they work together,

how long does it take to build a toy car?

3 m
Adam builds a toy car in 3 hours.

Bryan builds a toy car in 6 hours.

If they work together,

how long does it take to build a toy car?

Level 2

Adam builds a toy car in 3 hours.

Adam and Bryan builds a toy car in 5 hours.

If Bryan builds a toy car by himself, how long will he take?

(Give the answer in fraction. Eg 1^{1}_{3} h)

3 m
Adam builds a toy car in 3 hours.

Adam and Bryan builds a toy car in 5 hours.

If Bryan builds a toy car by himself, how long will he take?

(Give the answer in fraction. Eg 1

Level 3

Adam builds a toy car in 3 hours.

Bryan builds a toy car in 6 hours.

Chris builds a toy car in 5 hours.

If they work together,

how long does it take to build a toy car?

(Give the answer in fraction. Eg 1^{1}_{3} h)

3 m
Adam builds a toy car in 3 hours.

Bryan builds a toy car in 6 hours.

Chris builds a toy car in 5 hours.

If they work together,

how long does it take to build a toy car?

(Give the answer in fraction. Eg 1

Level 3

Adam and Bryan builds a toy car in 4 hours.

Bryan and Chris builds a toy car in 6 hours.

Chris and Adam builds a toy car in 3 hours.

How long does it take for Adam, Bryan and Chris to build a toy car together?

3 m
Adam and Bryan builds a toy car in 4 hours.

Bryan and Chris builds a toy car in 6 hours.

Chris and Adam builds a toy car in 3 hours.

How long does it take for Adam, Bryan and Chris to build a toy car together?

Level 3 PSLE

The graphs show the total number of leaflets machines A and B printed from the start. Both machines started printing at the same time.

The graphs show the total number of leaflets machines A and B printed from the start. Both machines started printing at the same time.

- How many more leaflets did B print than A in 5 minutes?
- Both machines did not change their rates of printing throughout. When A had printed 200 leaflets, how many leaflets had B printed?

2 m

Level 3

10 workers take 9 hours to paint 4 houses. How many hours will 5 workers take to paint 2 houses?

3 m
10 workers take 9 hours to paint 4 houses. How many hours will 5 workers take to paint 2 houses?

Level 3

An empty tank measures 50 cm by 20 cm by 35 cm. Water flows into the tank from Tap A at a rate of 25 ℓ per minute. At the same time, water drains from the tank from Tap B at a rate of 18 ℓ per minute. How long would it take to completely fill the tank?

An empty tank measures 50 cm by 20 cm by 35 cm. Water flows into the tank from Tap A at a rate of 25 ℓ per minute. At the same time, water drains from the tank from Tap B at a rate of 18 ℓ per minute. How long would it take to completely fill the tank?

3 m