If 50% of \sqrt? = 20% of 10, which of the following should replace the sign (?)?

Powers and Roots Practice Test 5

Question : 12 of 31

Marks: +1, -0

If 50% of

√?

= 20% of 10, which of the following should replace the sign (?)?

Solution:

50% of

√{?}

= 20% of 10

∴1/2×√{?}=20/100×10

?=4^2=16

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