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Mathematics

Grade6

Easy

Question

A rectangular sheet of paper is $1 fraction numerator 1 over denominator 4 end fraction$ cm long having area $5 fraction numerator 1 over denominator 2 end fraction c m to the power of 2 end exponent$ , then find its width.

$4 \frac{4}{10}$ cm
$4 \frac{1}{10}$
$5 \frac{1}{10}$
$1 \frac{4}{10}$

hint Hint:

When we do division between two fraction, we use reciprocal method.

The correct answer is: $4 fraction numerator 4 over denominator 10 end fraction$ cm

Area of rectangle = $l cross times b$ = $5 fraction numerator 1 over denominator 2 end fraction equals fraction numerator 11 over denominator 2 end fraction c m to the power of 2 end exponent$
Breadth of rectangle (B) = $fraction numerator a r e a over denominator l e n g t h end fraction$
$equals fraction numerator 11 over denominator 2 end fraction divided by fraction numerator 5 over denominator 4 end fraction equals fraction numerator 11 over denominator 2 end fraction cross times fraction numerator 4 over denominator 5 end fraction equals fraction numerator 44 over denominator 10 end fraction equals 4 fraction numerator 4 over denominator 10 end fraction$ cm

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