The mean proportional between 2.4 and 4.3 correct to two places of decimal is 3.21

True

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False

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Solution

The correct option is A True
Mean proportional of two numbers, $a$ and $b$ is $\sqrt{a b}$
So, mean proportional of $2.4, 4.3$ is $\sqrt{2.4 \times 4.3} = \sqrt{4 \times 0.6 \times 4.3} = 2 \times \sqrt{2.58} = 3.21$

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Similar questions

Find the square root of :

(i) 245 correct to two places of decimal.

(ii) 496 correct to three places of decimal.

(iii) 82.6 correct to two places of decimal.

(iv) 0.065 correct to three places of decimal.

(v) 5.2005 correct to two places of decimal.

(vi) 0.602 correct to two places of decimal.

Question 53.
The decimal 3.725 is equal to 3.72 correct to two decimal places.

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