in a box the ratio of red marbles to blue marbles is 3:8 which of the following could be the total number of marbles in the box
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Answer:
let , number of red marbles =a
number of blue marbles=b
total number of marbles=100
a+b=100
a/b=3/8
so 8a=3b
a=100-b
8(100-b)=3b
800-8b=3b
800=11b
b=800/11
hence a=300/11
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