Q1 of 59 Page 77

Select the appropriate alternative answer for the following questions.

What is the mean proportional of 4 and 25?

Mean proportional of two numbers a and b = √(ab)


∴ Mean proportional of 4 and 25 = √(4 × 25)


= √100 = 10

More from this chapter

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1

Select the appropriate alternative answer for the following questions.

The ages of Jatin, Nitin and Mohasin are 16, 24 and 36 years respectively. What is the ratio of Nitin’s age to Mohasin’s age?

 1

Select the appropriate alternative answer for the following questions.

24 Bananas were distributed between Shubham and Anil in the ratio 3 : 5, then how many bananas did Shubham get?

 2

For the following numbers write the ratio of first number to second number in the reduced form.

i. 21, 48 ii. 36, 90


iii. 65, 117 iv. 138, 161


v. 114, 133

 3

Write the following ratios in the reduced form.

i. Radius to the diameter of a circle.


ii. The ratio of diagonal to the length of a rectangle, having length 4 cm and breadth 3 cm.


iii. The ratio of perimeter to area of a square, having side 4 cm.