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Q.
The product of three consecutive even numbers when divided by 8 is 720. The product of their square roots is :
A.
12 sqrt(10)
B.
24 sqrt(10)
C.
120
D.
none of these
View Answer
Correct choice: B
Explanation:
Let the numbers be x, x + 2 and X + 4. Then, x(x + 2)(x +4) / 8 = 720 => x(x + 2)(x +4) = 5760. √x * √(x + 2) * √(x +4) = √x(x +2)(x + 4 ) = √5760 = 24√10.
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