Question

Lerato is earning R18 per hour making pancakes.
How much is she earning in cents per second?

Answer 1

Lerato is earning R18 per hour making pancakes. 'R' stands for 'Rand' which is South African currency. It is subdivided to 100 cents

i. e. $R 1 = 100 cents$

Then $R18 = 18 \times 100 = 1800 cents$

Amount earned per hour $= 1800cents$

I. e amount earned per 3600 seconds $= 1800 cents$

$($ As we have $1 hour = 60\times60 seconds = 3600\space seconds$ )

Therefore amount earned per second $= 1800 \div 3600= 0.5 cents$

Hence Lerato earns $0.5 cents \space per \space second.$