Question 31

The mean proportional between 0.16 and 0.64 is:

Mean proportional of two numbers is obtained by multiplying the two numbers and finding the square root of the number.

For the given numbers, mean proportional is given by,

= $$\sqrt{0.16 \times 0.64}$$

= $$\sqrt{0.1024}$$ = 0.32

Hence, option A is the correct answer.

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