book Maths Puzzle Numerical Ability

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,

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book Other Question

A cheetah is 300 feet from its prey. It starts to sprint toward its prey at 90 feet per second. At the same time, the prey starts to sprint at 70 feet per second. When will the cheetah catch its prey? 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