book Maths Puzzle Numerical Ability

bob has $3 more than Carol, and Carol has twice as much as Leon. Together they have $108. How much does each person have?

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book Other Question

what is the decimal for 45% Four gallons of pure iodine are added to 46 gallons of 2% iodine. How much of the final solution do you have?How much iodine is contained in the mixture? What is the strength(perce