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please help
Colin , Dave and Emma share some money
Colin gets 3/10 of the money
Emma and Dave share the rest of the money in the ratio 3 : 2
what is Dave's share of the money ?



Answer :

Between emma and dave, we have 7/10ths of the money

3x + 2x = 7/10

5x = 7/10

x=(7/10)/5

x= 14/100

Dave will get 28/100 or 7/25ths

Check : 30/100      Colin
            42/100      Emma 
         + 28/100     Dave
           -----------
           100/00

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