If a : b = 3 : 5 and a : c = 5 : 7, what is the value of b : c?

dsuc.created: 7 years ago | dsuc.updated: 6 days ago

dsuc.updated: 6 days ago

3 : 7

25 : 21

21 : 25

7 : 3

Jamuna Bank Ltd Jamuna Bank Ltd - Officer - 2004 গণিত অনুপাত - সমানুপাত (Ration-Proportion-Algebra)

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Here, a : b = 3 : 5 = (3×5) : (5×5) = 15 : 25

Again, b : c = 5 : 7 = (5×3) : ( 7×3) = 15 : 21

So, a : b : c = 15 : 25 : 21

Therefore, b : c = 25 : 21

7 years ago

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Md Azizur Rahman

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