exam Maths Puzzle Numerical Ability

A person can drive from town A to town B at a certain rate of speed in 6 hours. If he increases his speed by 20kph he can make the trip in four hours. How far is it from town A to B.

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exam Other Question
Is the following trinomial a perfect square?
x^2 + 2x - 1 I am finishing high school form home. My school is called education direct.

my question is

3xyz squared by 2y
___________ ____________
6y squared*2 by xz squared*2

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