exam
Maths Puzzle
Numerical Ability
) Statistics. A survey of 400 people found that 66 were left-handed. What percent of those surveyed were left-handed?
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exam Other Question
There are currently 50 million cars in a certain country, decreasing by 4.9% annually. How many years will it take for this country to have 27 million cars? Round to the nearest year.
how would you work this out 4xcubed-13xsquared+11x-2=0
also I got this problem to do it's 2xsquared+3x+1=0 I got this answer x=1/2 and x=-1 is this right