book Maths Puzzle Numerical Ability

An express train leaves Cedarville at the same time a passanger train leaves Pine City, 470 miles away. The express train, traveling 10 mph faster, passes the other train in 2.5 ho

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book Other Question

Eight cards are selected with replacment from a standard pack of 52 playing cards, with 12 picture cards, 20 odd cards and 20 even cards. How many sequences of 8 are possible, that include 3 picture cards, 3 odd cards and 2 even cards, How do I find the partial fraction decomposition of 2 x2 + 7x + 2/ (x+1)3 and

x2 -5x -19/ (2x -1) (x2 + 4) and 8x3 + 19x/ x4 + 4x2 +4