Question 2(b)
Write True (T) or False (F) against each of the following statements:
21:6::35:10
If two ratios are equal, we say that they are in proportion.
Ratio of 21 to 6 = 216 = 7 : 2
Ratio of 35 to 10 = 3510 = 7 : 2
Since, 21 : 6 = 35 : 10
Therefore, 21, 6, 35, 10 are in proportion.
Hence, it is True.