exam
Maths Puzzle
Numerical Ability
find the value of the expression 10C8
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10C8 is the same as 10C2
10C2 = [10*9]/[1*2] = 45
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Cheers,
Stan H.
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exam Other Question
A six passenger plane cruises at 180 mph in calm air. If the plane flies 7 miles with the wind in the same amount of time as it flies 5 miles against the wind, then what is the wind speed?
6x2-9x-8x+12