book Maths Puzzle Numerical Ability

f(x)= log x

I dont even know how to begin.

Read Solution (Total 0)

book Other Question

it takes 4 hours for 9 cooks to prepare a school lunch. How long would it take 6 cooks to prepare the lunch?
it would take 6 cooks _____hours.
is it 2.66? How do you simplify this fraction? 15c-5c squared over 3c-c squared.