If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and

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Question

If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm2, then length breadth and height in cms, are respectively?

Options:

A . 90, 85, 60

B . 85, 75, 60

C . 90, 75, 70

D . 90, 75,60

Answer: Option D

Length = 6x
Breadth = 5x
Height = 4x in cm
Therefore, 2(6x Ã— 5x + 5x Ã— 4x + 6x Ã— 4x) = 33300
148x² = 33300
=> x² = 33300/148 = 225
=> x = 15.
Therefore, Length = 90cm,
Breadth = 75cm,
Height = 60cm
90, 75 , 60 cm

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