exam Maths Puzzle Numerical Ability

A telephone installer has 115 feet of wire which is to be cut into three pieces. The second piece is 5 feet longer than the first piece, and the length of the third piece is three times the length of the second. Find the length of each piece.

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exam Other Question

What is the capacity of a container which is 4 inches tall and has a 2-inch diameter?

Answer Choices:
A) 4pi cuin.
B) 8 cu in.
C) 12.4 pi cu in.
D) 16 cu in. A regular polygon has 10 sides. Find the measure of each exterior angle.
I want to make sure my math is correct.
360/10=36 Each exterior angle=36 degrees