For the following questions answer them individually
The compound interest on a certain sum at a certain rate percent per annum for the second year and the third year are ₹3300 and ₹3630, respectively. The sum is:
A boat can cover 36 km downstream and 16 km upstream in 10 hours. It can cover 3 km downstream and 1.2 km upstream in 48 minutes. What is the speed (in km/hr) of the boat when going upstream?
The value of $$[0.08 \div 1.2 of (3.4 - 2.6) \times 0.8 of 3.2] of \frac{9}{16}$$ lies between:
Study the following table and answer questions:
Number of students studying in five schools of a city
In how many schools, the number of girls is more than the average number of boys per school?
Two solutions of acid and water containing acid and water in the ratio 2 : 7 and 4 : 5, respectively are mixed in the ratio 2 : 5. What is the ratio of acid and water in the resulting solution?
What is the mean of the range, median and mode of the data:
$$2, 3, 1, 1, 3, 4, 2, 1, 1, 4, 5, 2, 4, 2, 2, 1, 3, 3, 2, 5$$
Suman sold an article for 882 after allowing 16% discount on its marked price. Had she not allowed any discount, she would have gained 20% on the cost price. What is the cost price ofthe article?
Two pipes A and B can fill a tank in 12 minutes and 15 minutes, respectively. When an outlet pipe C is also opened, then the three pipes together can fill the tank in 10 minutes. In how many minutes can C alone empty the full tank?
A person covered a distance of 250 km at a certain speed. If his speed is 20% less, he would have covered the same distance in $$1\frac{1}{4}$$ hours more time. His speed (in km/hr), initially was:
When 32% of a number X was added to another number y , then y increases by 24%. The value of $$\frac{(2x+y)}{3x-y}$$ is: