exam
Maths Puzzle
Numerical Ability
Solve for n
7n+2[3(1-n)-2(1+n)]=14
I ggot the answer as 10, but when my mom checks it she cannot make it work.
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exam Other Question
One pipe can fill a tank in 6 hours, and another pipe can fill the same tank in 8 hours. How long will it take to fill the tank if both pipes are used?
1) y+2=5/3 (x+6)
2) y+3=-5 (x+1)
3) y-1=5/6 (x-4)