Revision on Rate

Mrs Lee collected 9 litres of water from a dripping tap in 5 hours. What is the rate of water dripping from the tap in litres per hour?

• 0.5 ℓ per hour

• 1.8 ℓ per hour

• 14 ℓ per hour

• 45 ℓ per hour

A shop produces 729 dolls in 9 days. How many dolls does it produce in 1 day?

• 81

• 91

• 6561

A factory produces 240 cans in 15 minutes. How many cans does it produce in 1 hour?

• 16

• 64

• 256

• 960

At Mr Tan's fruit stall, lychees are sold at $0.65 per 100 g. What is the price of lychees per kilogram?

• $6.50

• $65

• $650

At a stall, longans are sold at $4.50 per 1 kg. How much do I have to pay for 1.5 kg of logans?

• $0.45

• $45

• $6.75

Tom is paid $42 for 7 hours of work. How many hours does Tom work if he is paid $120 at the same rate?

• 3

• 6

• 20

Mr Sim can type 90 words in 5 minutes. How many words can he type in 45 minutes?

• 18

• 810

• 4050

In 1 min, water flowing from a tap can fill 4 containers with 200 ml of water each. How many containers can be filled with 200 ml of water each in 3 min if water from the tap flows at the same rate?

• 4

• 8

• 12

• 16

A car can travel 100 km on 8 litres of petrol. The cost of 1 litre of petrol is $1.20. How far can the car travel on 10 litres of petrol?

• 0.8

• 12.5

• 80

• 125

A car can travel 100 km on 8 litres of petrol. The cost of 1 litre of petrol is $1.20. What is the cost of petrol if the car travels 200 km?

• $9.60

• $19.20

• $96

• $192