exam
Maths Puzzle
Numerical Ability
a rocket is fired upward with an inital speed of 1960 m/s. after how many minutes does it hit the ground?
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exam Other Question
The length of a rectangle is 6 ft longer than its width. The perimeter is 84 ft . What is the length?
84=2w+2l then I forget how to do this. Thank you.
When fifteen is subtracted from four times the sum of seven and twice some number, the result is 45