Revision Quiz 10

Write the following sentence as an equation:

Harry has 5 marbles less than Dylan

• H= D - 5

• H- 5 = D

• H= D + 5

• H = D

Answer explanation

Harry has less than Dylan so take away 5 from Dylan, this is 5 less than Dylan (D - 5)

There are 50 followers. Pamela has some.

Larry has three times as many followers as Pamela.

Lauren has 5 followers less than Pamela. How many followers does Pamela have?

• 16

• 11

• 45

• 150

Answer explanation

Pamela= P

Lauren=3P

L=P - 5

P + 3P + P - 5=50

Here is some information:

3 sausage rolls cost £1.80

Yo want to buy 9 rolls. How much is that?

• £16.20

• £3.60

• £1.89

• £5.40

Answer explanation

£1.80 /3= £0.60 per roll then x 9

Or £1.80 x 3

Because 3 sausages x 3 = 9 sausage rolls

Here is some information:

Pack of 4 drinks normal price £2.40

15% off normal price

Mary buys 8 drinks, how much does she pay?

• £4.08

• £4.80

• £2.04

• £5.52

Answer explanation

£2.40 x 2 = £4.80 work out 15% and take it off

Or work out 15% of £2.40 and take away from £2.40 then x 2

Find the area of the trapezium

Answer explanation

Area= 1/2 (a+b)h where a is the shortest and b the longest parallel line of the trapezium and h is the distance between the parallel lines. Add first then x then divide by 2

What is 2x(6x + 4x), simplify.

• 12x + 4x

• 2x(10x)

• 8x + 6x

You run for 15 minutes at an average of 4 kilometres per hour.

How many kilometres do you run?

• 15km

• 60km

• 2km

• 1 km

Answer explanation

15 minutes is 1/4 of an hour so the distance (4 km) divided by 4

Or 4/0.25 as you have to change the minutes to hours by dividing 15/60

You run for 40 minutes at an average speed of 6 kilometres per hour.

What distance do you run?

• 240km

• 3km

• 4 km

• 12km

Answer explanation

If you run 6 km per hour then you run 2 km in 20 minutes so in 40 min=4km

Or 6 x 0.66666 (change the min to hours 40/60)

It takes Libby 45 minutes to walk 1500m. Work out Libby's average speed.

• 2000mph

• 3000mph

• 4500mph

• 500mph

Answer explanation

For every 15 is 500 Km so 500 x4=2000km (because 15 x 4= 1 hour

Or 1500/0.75

The value of Peter's house has decreased by 10%. The house now has a value of £270,000. Work out the value of Peter's house before the decrease.

• £297,000

• £300,000

• 30,000

• £243,000

Answer explanation

270000 represents 90% after the 10% loss

So 270000/90 then x 100 to find the original value (100%)