Percentage MCQs

The sum of weights of A and B is 80 kg. 50% of A's weight is $$\frac{5}{6}$$ times the weight of B. Find the difference between their weights.

In an election, candidate X got 70% of the overall valid votes. If 20% of the overall votes were declared invalid and the total numbers of votes is 64000, then find the number of valid votes polled in favour of the candidate.

In an election between two candidates, 65% of the voters cast their votes, out of which 3% of the votes were decided to be invalid. A candidate got 81965 votes which are 65% of the total valid votes. What is the total number of votes enrolled in that election?

The monthly salaries of A and B are the same. A, B and C donate 10%, 8% and 9% respectively, of their monthly salaries to a charitable trust. The difference between the donations of A and B is Rs. 400. The total donation by A and B is Rs. 900 more than that of C. What is the monthly salary of C?

Price of rice is decreased by 25 percent and therefore a person can purchase 30 kg more rice in the same expenditure. If expenditure is Rs. 5400, then what was the original price of rice per kg?

If a positive number 'k' when multiplied by 30% of itself gives a number which is 170% more than the number 'k' then the number 'k' is equal to:

If 40% of a number is less than its 60% by 30, then the 20% of that number is:

If A is 40% less than B and C is 40% of the sum of A and B, then by what percentage is B greater than C?

If A's salary is 30% more than B's salary, then by what percentage is B's salary less than that of A? (correct to one decimal place)