exam
Maths Puzzle
Numerical Ability
joe can paint all the rooms of a house in 20 hours it takes ross 60 hours to do the same thing. How long would it iake them if they worked together?
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exam Other Question
Which function has a domain {xsuch thatx is less than 2, x is R}?
a) -1/4(y-2)=(x+5)^2
b) y=3(4)(^-(x-2)) +2
c) y=log(4-2x)
d) y=log base1/2 (x-2)
I think the answer is (B)?????????
Translate the following problems into algebraic equations :
1) 42 is 40% of what number?
2) 15 is what percent of 3?
3) The sum of the page numbers on facing pages of a book is 157; what are the page numbers?