By a selling basket for Rs. 19.50, a shopkeeper gains 30 %. For how much should he sell it to gain 40 %? 

The sum of length, breadth and height of a cuboid is 25 cm. The length of its diagonal is 15 cm. Find the total surface area of the cuboid.

Find the inradius of a triangle having sides 13, 14 and 15 units.

Directions: The following pie-chart represents the result of 600 successful students in various subject of an examination. Study the Pie-chart and answer question.

The ratio of students who passed in Bengali, to the students who passed in History is

Sharikh got 32% discount on the marked price of a car and paid Rs. 153000 for the car. If the discount be 5%, what will be the, cost of car ? 

The sum of 17 consecutive numbers is 289. The sum of another 10 consecutive numbers, whose first term is 5 more than the average of the first set of consecutive numbers is:

The average marks of a student in four subjects is 75. If the student obtained 80 marks in the 5^th subject then the new average is ?

If the graph of the equations x + y = 0 and 5y + 7x =24 intersect at (m, n), then the value of m + n is :