VISION
Exercise : R-1
1. Which of the following ratios are in proportion?
(a) 12 21 and 32 56
(b) 18:30 and 14

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VISION
Exercise : R-1
1. Which of the following ratios are in proportion?
(a) 12 21 and 32 56
(b) 18:30 and 14
(c) 22 : 33 and 33: 24
(d) 24 : 28 and 20​

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