Marbles in Boxes

[nycmath]

Box A has 100 marbles. Box has 200 marbles. If 1/4 of the marbles from Box A were given away and 2/5 of Box B were also given away, how many marbles remain?

[Eigenvalue]

Remaining marbles in box A: 100- (0.25*100)=0.75*100=75
Remaining marbles in box B: 200-(0.4*200)=(0.6*200)=120
120+75=195
195 marbles remain

[nycmath]

Remaining marbles in box A: 100- (0.25*100)=0.75*100=75
Remaining marbles in box B: 200-(0.4*200)=(0.6*200)=120
120+75=195
195 marbles remain

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