CAIE IGCSE Mathematics Finding a Percentage of a Quantity

Practise finding a stated percentage of money, populations, measurements or chart totals and interpreting the result in its original context.

Exam points

multiply the given quantity by percentage ÷ 100 to obtain the required part
identify the correct whole from a chart, ratio or written context before applying the percentage
retain the requested unit and round only when the question's context or accuracy requires it

[Maximum number: 2]

The table shows information about some of the planets in the solar system.

Planet	Diameter (km)	Average distance from the Sun (km)
Earth	12800	$1.496\times10^8$
Mars	6800	$2.279\times10^8$
Jupiter	143000	$7.786\times10^8$
Saturn	120500	$1.434\times10^9$
Neptune	49500	$4.495\times10^9$

The planet Uranus has a diameter that is 35.8% of the diameter of Jupiter.

Calculate the diameter of Uranus.

51200 or 51190 or 51194
M1 for $\frac{35.8}{100}\times143000$
After 0 scored, SC1 for answer figs 512 or figs 5119 or figs 51194

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