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Square root and cube root

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  1. The square root of (1/4) x (1/49) ÷ (25/121) is
    1. 11/5
    2. 11/70
    3. 7/11
    4. 11/7
Correct Option: B

Square root of (1/4) x (1/49) ÷ (25/121)
= √(1/4) x (1/49) x (121/25)
= 11 / (2 x 7 x 5)
= 11/70


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