For the following questions answer them individually
The average of marks obtained by S1 and S2 is 30 more than the average marks obtained by S2 and S3. If the marks obtained by S3 is 50, then what are the marks obtained by S1?
40 men can construct a building in 100 days. How long will it take 80 men to do this work?
The Least Common multiple of three different numbers is 40. Which of the following cannot be their Highest Common Factor?
A trader buys two articles for Rs. 4000 each article. If he earns a profit of 10 percent on one and losses 30 percent on the other, then what will be his overall loss percentage?
An item is sold at two successive discounts of 20 percent and 20 percent. The selling price of article after second discount is Rs. 3616. If it is sold only at one discount of 20 percent, then what be the selling price of the article?
A = Rs 6000 is invested at simple interest for 5 years and annual rate of interest is 15 percent. B = Rs. 5000 is invested at simple interest for 2 years and annual rate of interest is 20 percent. What is the ratio of interests earned in A and B respectively?
The pie chart given below shows the number of boys in 8 schools. The total number of boys in all these 8 schools is 10000. Number of boys in a particular school is shown as a percent of total number of boys in all these 8 schools.
What is the ratio of central angle formed by sector C, D and F together to the central angle formed by sector A, G and H together?
What is the value of $$\frac{1}{7} \times \frac{1}{8} \div \frac{72}{51} \ of \ \left(\frac{1}{9} + \frac{1}{8}\right) + \left(\frac{63}{56} \times \frac{48}{72}\right)$$?