Question

if 24 ball pens cost 56, find the cost of 18 such pens.
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Answer 1

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• $\sf\small{Cost \:of \:24\: pens\: = \:Rs\: 56}$

⠀ $\sf\small{=> \:Cost \:of \:1 \:pen\: = \:Rs }$$\small\frac{56}{24}\:=\:Rs$$\small\frac{7}{3}$

⠀ $\sf\small{=> \:Cost\: of\: 18 \:pens\: = \:Rs }$$\small({\frac{7}{3}}\: ×\: 18)$

⠀ $\sf\small{=>}\:\sf\small{\bold{ Rs\: 42.}}$

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Answer 2

Answer:

Cost of 18 pen = 56/24 * 18

= 42 rupees