Ratio, Proportion and Rate Questions

Mahirah and Jazmi shared $72 in the

ratio 7 : 5.

How much does Mahirah received?

• $42

• $30

• $100.80

Three friends, Chleopatra, Dalila and Ebony go shopping.

The money they each have is in the ratio

Cleopatra : Dalila : Ebony = 5 : 7 :8.

Cleopatra has $15.

How many dollars do they have in total?

• $3.75

• $60

• $80

Antonia is making a cake.

She uses currants, raisins and sultanas in the ratio

raisins: sultanas: currants= 3 : 5 : 4

The total mass of the three ingredients is 3.6 kilograms. Calculate the mass of sultanas.

• 1.2 kilograms

• 1.5 kilograms

• 0.9 kilograms

A lorry uses 80 litres of fuel on a trip of 280 kilometres.

How much fuel would the same lorry use on a trip of 196 kilometres?

• 114 litres

• 56 litres

• 686 litres

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

It takes a photocopier 16 seconds to produce 12 copies.

How long will it take to produce 30 copies?

• 22.5 seconds

• 40 seconds

• 50 seconds

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

CCSS.6.EE.B.7

Chairs in a hall are arranged in 35 rows of 18. How many rows would there be with 21 chairs in a row?

• 4.8 rows

• 40 rows

• 30 rows

Tags

CCSS.6.NS.B.2

It takes 16 hours for three bricklayers to build a wall.

Calculate how long it would take for eight bricklayers to build a similar wall.

• 8 hours

• 2 hours

• 6 hours

Mrs Wong wants to buy some foods for the giraffes at the zoo.

Work out which bag is the best value for money.

• small bag

• medium bag

• large bag

On a 268 km journey, a car uses 22.8 litres of fuel.

By writing these numbers to 1 significant figure, estimate the distance travelled using one litre of fuel.

• 12 kilometres

• 15 kilometres

• 20 kilometres

An athlete runs 1500 metres in 4 minutes. Calculate her average speed in kilometres per hour.

• 375 kilometres per hour

• 22.5 kilometres per hour

• 0.00625 kilometres per hour