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Standard VI

Mathematics

Introducing large numbers

The cost of d...

Question

The cost of dozen pens is $Rs 320.40$ . Find the cost of $1$ pen .

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Solution

Given : The cost of dozen pen $= Rs 320.40$
$1$ Dozen $= 12$
So,
Cost of one pen $= \frac{320.40}{12}$
$= \frac{32040}{100 \times 12} = \frac{12 \times 2670}{100 \times 12}$
$= \frac{2670}{100} = 26.7$
Hence, the cost of one pen is $Rs . 26.7$

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The cost of dozen pens is Rs320.40 . Find the cost of 1 pen .

Given : The cost of dozen pen =Rs320.401Dozen =12So, Cost of one pen =320.4012 =32040100×12=12×2670100×12 =2670100=26.7Hence, the cost of one pen is Rs.26.7

The cost of dozen pens is $Rs 320.40$ . Find the cost of $1$ pen .

Given : The cost of dozen pen $= Rs 320.40$
$1$ Dozen $= 12$
So,
Cost of one pen $= \frac{320.40}{12}$
$= \frac{32040}{100 \times 12} = \frac{12 \times 2670}{100 \times 12}$
$= \frac{2670}{100} = 26.7$
Hence, the cost of one pen is $Rs . 26.7$