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If a : b=2:5\ then the value of (2a+3b)...

If `a : b=2:5\ ` then the value of `(2a+3b):(7a+5b)` is `5:3` b. `6:5` c. `12 :5` d. `30 : 19`

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RS AGGARWAL-RATIO AND PROPORTION-All Questions
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  3. If a : b=2:5\ then the value of (2a+3b):(7a+5b) is 5:3 b. 6:5 c. 12 :...

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