book Maths Puzzle Numerical Ability

Translate to a proportion and solve.(round to the nearest hundreth if need)



(1) what number is 15% of 135



(2) 3 is what percent of 87?


(3) 19.6 is 28% percent of what number?

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book Other Question
50=15-6(2x-5)


and


3(-6x+9)-10x=1 Find all the zeros in the function
f(x)=x^5+15^3=100x
where the zeros A,B,C, are real numbers with A<B<C
A=
B=
C=