exam Maths Puzzle Numerical Ability

Find the area of an equilateral triangle in which the height is 3 square root of 3.

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exam Other Question

A tour-bus goes 90 miles to its destination. The rate returning is twice as fast as going. The time for a round trip is 3 hours. How fast does the tour-bus go on each part of the trip? A bottle and a cap together cost $1.10. The bottle cost $1.00 more than the cap. How much does each cost?