3 brothers shared some cash. The ratio of Marks and Davids share is 1:2, the ratio of Davids and Pauls share is 1:2, What is the ratios of Marks share to Pauls share?

Question

alekos · Answer

do you have any idea?

anonymous · Answer

i think is 1/4 but not sure

alekos · Answer

that's right

anonymous · Answer

My text book says the answer should be 1/7

alekos · Answer

that can't be.  If Mark had $1 Paul would have $2 and David would have $4

alekos · Answer

sorry Mark $1, David $2 and Paul $4

anonymous · Answer

could you show me your worked example?

hartnn · Answer

lets see ,

let mark share be 'x'
then davis share = '2x' 
and paul's will be '4x' 
agreed ?

anonymous · Answer

Thanks guys, that helped

alekos · Answer

no worries

hartnn · Answer

1/7 is the Mark's share from the entire pool of cash

anonymous · Answer

Got it :-)