exam
Maths Puzzle
Numerical Ability
In the Senior Class, one-fifth of the students are enrolled in mathematics. Find the number of students in the senior class if 87 are enrolled in mathematics.
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exam Other Question
express as a single logarithm
5logN-3logN^4 (the last part meens exponent 4)
7(3-x)+1=5x-2
21-7x+1=5x-2
24=12x
24/12=2
12x/12=x
x=2