Question

Lottie buys a pack of 50 cans of lemonade.
She pays £17 for the cans.

Lottie sell 32 of the cans for 50p each.
She sells the remaining cans for 20p each.

Work out Lottie's percentage profit.
Give your answer correct to three significant figures.​

Answer 1

Answer:

£15.7

Step-by-step explanation:

32 cans x 50P = 1600p

1600p to Pounds = £26.66 (1600 divided by 60)

Remaining cans = 18 (50 - 32)

18 cans x 20p = 360p

360p to Pounds = £6 (360 divided by 60)

£26.66 + £6 = £32.66

£32.66 (Profit) - £17 (Cost of cans) = £15.66

15.66 to 3SF = 15.7

Answer 2

Answer:

15.3%

In Order:

1) Lotte buys 50 cans for £17.

2) Sells 32 cans for 50 penny each.

3) Sells remaining for 20 penny each.

Solve:

Total cost for 32 cans:

price of each can × total cans

50 penny × 32

1600 penny

Remaining Cans : 50 - 32 = 18 cans

Total cost of this 18 cans:

20 penny × 18

360 penny

$\boxed{\bf 100 \ penny \ (p) = 1 \ pound \ ( \sf \£ )}$

Total Gained : 1600 + 360 = 1960 pence ≈ £19.6

Profit : selling price - cost price : 19.6 - 17 = £2.6

Profit In percentage:

$\sf \dfrac{(selling \ price - cost \ price)\ x \ 100}{cost \ price}$

$\rightarrow \sf \dfrac{2.6\ x \ 100}{17}$

$\rightarrow \sf 15.294 \%$

$\rightarrow \sf 15.3 \% \ \ (rounded \ to \ nearest \ three \ significant \ figure)$