Obtain the volume of rectangular boxes with the following length, breadth and height respectively.
$5 a, 3 a^{2}, 7 a^{4}$

102 a^{7}

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105 a^{7}

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192 a^{7}

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606 a^{7}

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Solution

The correct option is B $105 a^{7}$
Required volume = $5 a \times 3 a^{2} \times 7 a^{4}$
= $(5 \times 3 \times 7) \times (a \times a^{2} \times a^{4})$
= $105 a^{1 + 2 + 4} = 105 \times a^{7}$

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5 a, 3 a^{2}, 7 a^{4}

Question 4(i)
Obtain the volume of rectangular boxes with the following length, breadth and height respectively:
$5 a, 3 a^{2}, 7 a^{4}$

Question 4(i)
Obtain the volume of rectangular boxes with the following length, breadth and height respectively:
$5 a, 3 a^{2}, 7 a^{4}$

Obtain the volume of rectangular boxes with the following length, breadth and height respectively.

(i) 5a, 3a², 7a⁴ (ii) 2p, 4q, 8r (iii) xy, 2x²y, 2xy²

(iv) a, 2b, 3c

5 a, 3 a^{2}, 7 a^{4}

2 p, 4 q, 8 r

x y, 2 x^{2} y, 2 x y^{2}

a, 2 b, 3 c

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