The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student?

Directions :- Refer the graph and answer the given questions.
 The following line graph shows the number of products sold by company A and B during six years.

What is the difference between the total number of products sold by B in 2011, 2012 and 2016 together and the total number of products sold by A in 2011, 2012 and 2013 together?

Five women can do a work in thirty six days. If the ratio between the capacity of a man and a woman is 3:1, then find how many days it will take 5 men to complete the same work?

A long-distance runner runs laps of a 400 mt. track every day. His timings (in min.) for four consecutive days are 88, 96, 89 and 87 respectively, on average. How many meters/minute does the runner cover? 

If Cost price of an article is Rs.220 and profit is 20 %, then what will be the selling price of the article?

A is twice as efficient as B in writing novels. Together they can complete the task of writing a novel in 24 days. In how many days can A write the novel alone?

Comprehension: Read the following chart and answer the following questions.

What is the average death rate per day for the week? 

An examination was conducted for five subjects where the maximum marks for each subject was 100. Scored 82,97, 88 and 91 marks in 4 subjects respectively. If his total marks were 90 percent, then how many marks did he get in fifth subjects?