exam Maths Puzzle Numerical Ability

A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The inulation comes in 40-cm wide rolls that are cut to fit between the rafters in the atti

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2^65*2^70-2^97*2^38 A farmer intends to construct a windscreen by planting trees in a quarter mile row. His daughter points out that 44 fewer trees will be needed iff they are planted 1 foot furthe