For the following questions answer them individually
Amita buys 100 apples at the rate of 12 for ₹100.80 and 200 apples at the rate of 15 for ₹117. It was found that 10% of the apples were spoilt. She sold all the apples at 20 for ₹204. Her profit percentage in the entire transaction is:
A sum invested at compound interest amounts to ₹13,824 in 2 years and to ₹16,588.80 in 3 years at a certain rate percent per annum, interest being compounded yearly. What will be the amount of the same sum at the end of the $$4^{th}$$ year (nearest to a rupee)?
The ratio of the incomes of X and Y is 2 : 3, and the ratio of their expenditures is 4 : 5. If X and Y save ₹5,000 and ₹17,500, respectively, then what is the income (in ₹) of X?
Pipes A and B can fill a tank in 18 minutes and 30 minutes,respectively. Pipe C, attached to the tank, can drain off 125 litres of water per minute. If all the pipes are opened together, the tank is filled in 45 minutes. The capacity of the tank, in litres, is:
A sum of ₹16.200 was divided among A, B and C. Had A received ₹1,200 less, the ratio of the shares would have been 3 : 4 : 5. What was A's share, initially?
The value of $$2\frac{1}{4}\div1\frac{1}{2} of \left[4\frac{1}{6}-\left(\frac{17}{21}+\frac{4}{3}\times2\frac{1}{8}\div1\frac{1}{6}of\frac{3}{4}-\frac{5}{7}\right)\right]$$ is:
The average weight of students in a class is 58.5 kg. Four more students having weights 49 kg. 51 kg, 54 kg and 68 kg join the class. Now the average weight of all the students in the class is 58.3 kg. The number of students in the class, initially, was:
There are three positive integers. If the average of any two of them is added to the third, the resulting sums are 181, and 160. The average of the given integers is:
A man can row a boat 78 km downstream and 42 km upstream in 6 hours. The speed of the stream is 6 km/h. In how many hours can he row the boat a distance of 100 km in still water?
Study the given graph and answer the question that follows.
The total exports of the country in 2014, 2016 and 2018 are what percentage more than the total imports in 2015 and
2017 (correct to one decimal place)?