exam Maths Puzzle Numerical Ability

A freight train averaging 45 mph and an express train averaging 60 mph leave the station at the same time . How long will the express train take to get 100 miles ahead of the freig

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exam Other Question

simplify the following expressions. do not give decimal approx

(32x to -5th power)-1/5

(so to be explain it, its 32x to the -5the power in parenthesis, to the -1/5) The ratio of greens to blues was 2 to 1, and twice the sum of the number of blues and the number of whites exceeded the number of greens by 10. If there were 35 blues, greens, and whites in all, how many were there of each color?