Rates, SM-Bank 009 MC

Sid is selling bike tyre tubes at a market stall.

He makes $54 from selling 6 bike tyre tubes.

All bike tyre tubes cost the same.

How much will Sid make if he sells 11 bike tyre tubes?

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$C$

Show Worked Solution

$$54/6\ \text{tubes}$	$=\dfrac{$54}{6}/\dfrac{6}{6}\text{tubes}$
	$=$9/\text{tube}$

$\therefore\ \text{Price of 11 tubes}$	$=11\times 9$
	$=$99$

$\Rightarrow C$

\($54/6\ \text{tubes}\)	\(=\dfrac{$54}{6}/\dfrac{6}{6}\text{tubes}\)
	\(=$9/\text{tube}\)

\(\therefore\ \text{Price of 11 tubes}\)	\(=11\times 9\)
	\(=$99\)