Do the ratios 15 cm to 2 m and 10 sec to 3 minutes form a proportion?

Sum

15 cm : 2 m :: 10 sec : 3 min
15 cm : 2 × 100 cm :: 10 sec : 30 × 60 sec
15 : 200 :: 10 : 1800
3 : 40 :: 1 : 180
No, they donot form a proportion

shaalaa.com

Ratio of 15 cm to 2 m = 15: 2 × 100 (1 m = 100 cm)
= 3: 40

Ratio of 10 sec to 3 min = 10: 3 × 60 (1 min = 60 sec)
=1: 18

Since, 3: 40 ≠ 1: 18, therefore, the given ratios do not form a proportion.

shaalaa.com

Is there an error in this question or solution?

Using the properties of proportion, solve for x, given `(x^4 + 1)/(2x^2) = 17/8`.

Find the mean proportional to (x – y) and (x³ – x²y).

Verify the following:

60 : 105 : : 84 : 147

An electric pole casts a shadow of length 20 m at a time when a tree 6 m high casts a shadow of length 8 m. Find the height of the pole.

Choose the correct statement:

The ratio of boys and girls in a school is 12 : 5. If the number of girls is 840, the total strength of the school is

`square` : 24 : : 3 : 8

If the weight of 40 books is 8 kg, then the weight of 15 books is 3 kg

Sleeping time of a python in a 24 hour clock is represented by the shaded portion in the following figure.

The ratio of sleeping time to awaking time is ______.

Write True (T) or False (F) against the following statement:

5.2 : 3.9 : : 3 : 4