exam Maths Puzzle Numerical Ability Age Problem

Two points ,X and Y , are 120m apart , M is the mid-point of X and Y . An object travels from X to M in 12 seconds and then from M to Y at an average speed of 15m/s . Calculate :

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exam Other Question
Five hundred gallons of 82-octane gasoline is obtained by mixing 80-octane gasoline with 86-octane gasoline. How much of each must be used? write a rule for:

domain: 1,3,5,7,9
range: 0,1,2,3,4