Question 1
LEVEL 4
Three different shops sell batteries
Shop A: 3 batteries for \pounds4.80
Shop B: 12 batteries for \pounds14.76
Shop C: 1 battery for \pounds2.50
Select the shop below which has the cheapest price per battery:
A: Shop A
B: Shop B
C: Shop C
D: All prices are the same
CORRECT ANSWER: B: Shop B
WORKED SOLUTION:
The price per battery for shop C is given, so we just have to workout the cost per battery in Shop A & Shop B,
Shop A: \pounds4.80\div3=\pounds1.60 per battery
Shop B: \pounds14.76\div12=\pounds1.23 per battery
Hence, Shop B has the cheapest price per battery.
Question 2
LEVEL 4
Three different shops sell Staplers
Shop A: 22 staplers for £330
Shop B: 4 staplers for £80
Shop C: 3 staplers for £90
Select the shop below which has the cheapest price per stapler:
A: Shop A
B: Shop B
C: Shop C
D: All prices are the same
CORRECT ANSWER: A: Shop A
WORKED SOLUTION:
We have to workout the cost per stapler in Shop A, B & C.
Shop A: \pounds330\div22=\pounds15 per stapler
Shop B: \pounds80\div4=\pounds20 per stapler
Shop C: \pounds90\div3=\pounds30 per stapler
Hence, Shop A has the cheapest price per stapler.
Question 3
LEVEL 4
Three different shops sell calculators
Shop A: 5 calculators for £105
Shop B: 24 calculators for £552
Shop C: 3 calculators for £60
Select the shop below which has the cheapest price per calculators:
A: Shop A
B: Shop B
C: Shop C
D: All prices are the same
CORRECT ANSWER: C: Shop C
WORKED SOLUTION:
We have to workout the cost per calculator in Shop A, B & C.
Shop A: \pounds105\div5=\pounds21 per calculator
Shop B: \pounds552\div24=\pounds23 per calculator
Shop C: \pounds60\div3=\pounds20 per calculator
Hence, Shop C has the cheapest price per calculator.
Question 4
LEVEL 4
Three different shops sell calendars.
Shop A: 10 calendars for £110
Shop B: 12 calendars for £126
Shop C: 3 calendars for £60
Select the shop below which has the cheapest price per calendar:
A: Shop A
B: Shop B
C: Shop C
D: All prices are the same
CORRECT ANSWER: B: Shop B
WORKED SOLUTION:
We have to workout the cost per calendar in Shop A, B & C.
Shop A: \pounds110\div10=\pounds11 per calendar
Shop B: \pounds126\div12=\pounds10.50 per calendar
Shop C: \pounds60\div3=\pounds20 per calendar
Hence, Shop B has the cheapest price per calendar.
Question 5
LEVEL 4
Three different shops sell books.
Shop A: 11 books for £99
Shop B: 29 books for £203
Shop C: 200 books for £1200
Select the shop below which has the cheapest price per book:
A: Shop A
B: Shop B
C: Shop C
D: All prices are the same
CORRECT ANSWER: C: Shop C
WORKED SOLUTION:
We have to workout the cost per book in Shop A, B & C.
Shop A: \pounds99\div11=\pounds9 per book
Shop B: \pounds203\div29=\pounds7 per book
Shop C: \pounds1200\div200=\pounds6 per book
Hence, Shop C has the cheapest price per book.