exam Maths Puzzle Numerical Ability

Meg is 20 years younger than Phillip. In three years Phillip will be twice as old as Meg will be. How old is each now?

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exam Other Question

A cup of coffee is poured and left to cool on the counter. The formula that represents the temperature of the coffee over time is given by :
T=80(0.9)(^x/2)+20 where T is tempera In an isosceles triangle, two sides are equal. The third side is 75% of the length of one of the equal sides. Find the length of each side when the perimeter is 165 cm.