exam Maths Puzzle Numerical Ability

i have problem with this ques..plz will u help me...
1)If P(A)=1/3 and P(B)=3/5 and p(A U B)=14/15, then what type of events they are. By what number should P(A) be multiplied to make them independent?

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exam Other Question
Solve the porportion



16. 40/m = 32/16

Any help with this equation would be Greatly</b> appreciated. A chemist needs 130 milliliters of a 65% solution but has only 56% and 95% solutions available. Find how many millimeters of each that should be mixed to get the desired solution.