4:7::9 : ? | CLASS 14 | PRACTICE SET 10 | REASONING | Doubtnut

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If a : b = 3/2 : 7/3 and b : c= 1/5 : 1/7 , then find a : b : c . (a) 14 : 9 : 10 (b) 9 : 14 : 10 (c) 10 : 9 : 14 (d) 4 : 5 : 7

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8/7 +9/14

Let A = {7, 8, 9, 10, 11, 12} and B = {7, 10, 14, 15}. What is the number of elements in (A-B) and (B-A) respectively ?

Class 9th English VVI Questions?| Set 1 | 9th English Complete Book Most Important Questions

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