If a : b =7 : 3 and a b  = 20 , then b =  ? - Study24x7
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Jai Shanker
7 followers study24x7 03 Jul 2020 12:51 PM study24x7 study24x7

If a : b =7 : 3 and a + b  = 20 , then b =  ?

A

6

B

7

C

3

D

15

Class 10 Class 12 (PCM)
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