Find the square of rational number 13 - 1210 - 13-

The correct option is D 3625 Square of rational number = (13 × 1210 × 13)^2 = 169 × 144100× 169 = 3625 ...

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Standard VII

Mathematics

Comparison of Rational Numbers

Find the squa...

Question

Find the square of rational number $\frac{13 \times 12}{10 \times 13}$ .

\frac{16}{25}

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\frac{26}{25}

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\frac{36}{25}

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\frac{36}{15}

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Solution

The correct option is D $\frac{36}{25}$
Square of rational number = $(\frac{13 \times 12}{10 \times 13})^{2}$
= $\frac{169 \times 144}{100 \times 169}$
= $\frac{36}{25}$

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Q. Find the square of rational number

\frac{13}{26}

Compute the mode from the following data:
$\begin{matrix} Class interval & 1 - 5 & 6 - 10 & 11 - 15 & 16 - 20 & 21 - 25 & 26 - 30 & 31 - 35 & 36 - 40 & 41 - 45 & 46 - 50 Frequency & 3 & 8 & 13 & 18 & 28 & 20 & 13 & 8 & 6 & 4 \end{matrix}$

Class Interval	Frequency
$1 - 5$	$3$
$6 - 10$	$8$
$11 - 15$	$13$
$16 - 20$	$18$
$21 - 25$	$28$
$26 - 30$	$20$
$31 - 35$	$13$
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Compute the mode of the given data.

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Find the square of rational number 13×1210×13.

The correct option is D 3625Square of rational number = (13×1210×13)2= 169×144100×169= 3625

Find the square of rational number $\frac{13 \times 12}{10 \times 13}$ .

The correct option is D $\frac{36}{25}$
Square of rational number = $(\frac{13 \times 12}{10 \times 13})^{2}$
= $\frac{169 \times 144}{100 \times 169}$
= $\frac{36}{25}$