1. Which of the following ratios are in proportion?
(a) 12 : 21 and 32 : 56
(b) 18 : 30 and 14 : 21
(c) 22 : 33 and 33 : 24
(d) 24 : 28 and 20: 25
Answers
Answered by
14
Answer:
(b)18:30 and 14:21
Step-by-step explanation:
18/30=0.6
14/21=0.6
the will be same when dividing it
Answered by
5
Answer:
(a) 12:21&32:56 are in proportion & rest others are not proportion
Step-by-step explanation:
(a) 12:21&32:56
12,21,32,56
Here mean =21,32
Extremes = 12,56
Product of Means = 21×32
= 672
Product of extremes = 12×56
=672
Hence,Product of Means =Product of Extremes
Therefore,12:21&32:56 are in proportion
The other rest have to do by this process hope u understood
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