Question
AT a game of billiards . A can give B 15 points in 60 and A can give C 20 points in 60. How many points can B give C in a game of 90 ?
Answer: Option C
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A : B = 60 : 45 and A : C = 60 : 40
`:.` `B/C = (B/A xx A/C) = ( 45/60 xx 60/40) = 45/40 = 90/80` = 90 : 80.
`:.` B can give C 10 points in a game of 90.
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