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amit pathak

· started a discussion

· 1 Months ago

how can square of 15 be 450

Question:
The length, breadth and height of a cuboid are in the ratio of 6 : 5 : 4 and its whole surface area is 66600 cm2. What is its volume ?
Options:
A) \(960000 \sqrt{3} \ cm^3\)
B) \(960000 \sqrt{2} \ cm^3\)
C) \(810000 \sqrt{2} \ cm^3\)
D) \(640000 \sqrt{2} \ cm^3\)
Solution:

Ans: (C) 

Ratio of length, breadth and height of cuboid = 6 : 5 : 4

ATQ,


Knowledge Expert

· commented

· 1 Months ago

Hi, 15 root 2 had to be there because square root of 450 = square root of (15*15*2) = 15 root 2

we resolved it.

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