Let x be the least number between 56,000 and 60,000 which when divided by 40, 45, 50 and 55 leaves a remainder of 23 in each case. What is the sum of the digits of ?
Study the given graph and answer the question that follows.
The total number of female employees of the company in offices B, D and E is what percentage less than the total number of male employees in offices A, B, C and E ( correct to one decimal place)?
The average weight of all the students in a class is 55 kg. The ratio of the average weight of boys to that of girls is 5:4. If 40% of the students are boys and the rest are girls, then what is the average weight (in kg) of boys?
The ratio of copper and zinc in alloy A is 5:7 and that in alloy B is 4:5. A and B are taken in the ratio of 1:2 and mixed to form a new alloy C. What part of C is copper?