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Question
The cost of 11 pens is ₹ `24 3/4`. Find the cost of one pen.
Sum
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Solution
The cost of 11 pens is ₹ `24 3/4`.
One cost of a pen is calculated as,
cost = `24 3/4 ÷ 11`
= `99/4 ÷ 11/1`
= `99/4 xx 1/11`
= `(99 xx 1)/(4 xx 11)`
= `9/4`
= `2 1/4`
Therefore, the cost of one pen is ₹ `2 1/4`.
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Concept for Problem Solving Using Operations on Rational Numbers
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