exam Maths Puzzle Numerical Ability

swiming pool contains 14000 gallons of water, how many gallons of chlorine do you need to add to get a 33 percent mixture?

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exam Other Question

Pablo invested $445,000 in two bonds. The first bond paid 3% interest per year and the second 8% per year. The total interest pablo received in one year was $2850. How much did he invest in each bond? 0