exam Maths Puzzle Numerical Ability

A man who weighs 175 pounds on earth weigh 28 pounds on the moon. How much would his 30 pound dog weigh on the moon?

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exam Other Question

A solution has a concentration of 10 milligrams of salt per cubic centimetre. Water is slowly added such that the concentration of salt is reduced by 20% every two hours. Determine add as indicated express the results in simplest form

5/4cd + 11/4cd