A and B started business with the initial investment in the ratio 12:11 and their profit in the business were 4x and x respectively. If A invested the money for 11/12 year, then B invested the money for?

Direction: The following table shows the number of students of 7 colleges A, B, C, D, E, F, G participating in extra-curricular activities :

The college in which minimum number of students participate in extracurricular activities is ? 

A man sells an article at 5 % above its cost price. If he had bought it at 5 % less than what he had paid for it and sold it at Rs. 2 less, he would have gained 10 %. The cost price of the article is 

If the length of a rectangle increases by 50% and the breadth decreases by 25%, then what will be the percent increase in its area?

Present age of Ram and Shyam are in the ratio of 4: 5 respectively. Five year hence the ratio of their age becomes 5:6 respectively. What is Ram’s present age?

The average weight of five persons sitting in a boat is 38 kg. The average weight of the boat and the persons sitting in the boat is 52kg. What is the weight of the boat?

117.5, 117, 119, 111, 143, ?

The difference between the selling prices of some articles if sold for Rs.12 per article instead of Rs.9 per article is Rs.150. If the sold price of these articles is Rs.250 then find the selling price of 21 articles if profit earned is 20%.