exam
Maths Puzzle
Numerical Ability
5x-1=38
what does x equal
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exam Other Question
It takes my father 3h tpo plow our cornfield with his new tractor. Using the old tractor, it takes me 5h. If we both plow for 1h before I go to school, how long will it take him to finish the plowing?
36. solve for n
b) P(n,5)= 20P(n,3)