By selling oranges at the rate of Rs 514 per orange- a fruit-seller gets Rs 630 - How many dozens of oranges does he sell-

Cost of 1 orange = Rs #160;514=(5 #215;4)+14 #160;=Rs214 Number of oranges sold = 630 #247;214 #8658;63030 #215;421=120 #160; #8757; nbsp;12 ...

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Standard VII

Mathematics

Division of Decimal Numbers

By selling or...

Question

By selling oranges at the rate of Rs $5 \frac{1}{4}$ per orange, a fruit-seller gets Rs 630. How many dozens of oranges does he sell?

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Solution

Cost of 1 orange = $Rs 5 \frac{1}{4} = \frac{(5 \times 4) + 1}{4} = Rs \frac{21}{4}$
Number of oranges sold = $630 \div \frac{21}{4}$
$\Rightarrow 630^{30} \times \frac{4}{21} = 120$
$∵$ 12 oranges = 1 dozen

$∴$ 120 oranges = $\frac{120}{12} = 10 dozen$

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By selling oranges at the rate of Rs 514 per orange, a fruit-seller gets Rs 630. How many dozens of oranges does he sell?

Cost of 1 orange = Rs 514=(5×4)+14 =Rs214 Number of oranges sold = 630÷214 ⇒63030×421=120 ∵ 12 oranges = 1 dozen ∴ 120 oranges = 12012=10 dozen

By selling oranges at the rate of Rs $5 \frac{1}{4}$ per orange, a fruit-seller gets Rs 630. How many dozens of oranges does he sell?

Cost of 1 orange = $Rs 5 \frac{1}{4} = \frac{(5 \times 4) + 1}{4} = Rs \frac{21}{4}$
Number of oranges sold = $630 \div \frac{21}{4}$
$\Rightarrow 630^{30} \times \frac{4}{21} = 120$
$∵$ 12 oranges = 1 dozen

$∴$ 120 oranges = $\frac{120}{12} = 10 dozen$