book Maths Puzzle Numerical Ability

1. x+2x-4+5(2x-4)-2=13

Read Solution (Total 0)

book Other Question

Frank can type a report in 2hrs and james takes 5hrs. How long does it take them together? A CERTAIN BRASS ALLOY CONTAINS 60% COPPER, 34% ZINC, 6%LEAD. HOW MANY KG OFTHIS BRASS ALLOY AND OF ZINC MUST BE ADDED TO 20KG OF LEAD TO PRODUCE A NEW BRASS ALLOY THAT IS 40% ZINC