The difference between simple interest and compound interest at 10% per annum each on Rs. 1200 for one year if reckoned half yearly is

Three numbers are in the ratio 2:3:5. The first number, the second number reduced by 5 and the third number form an arithemetic sequence. Then the numbers are

The simple interest at x% for x years will be Rs. x on a principal of

Three solid cubes of sides 1 cm, 6 cm and 8 cm are melted to form a new cube. Find the total surface area of the cube so formed

The speed of three cars are in the ratio 5:4:6. The ratio between the time taken by them to travel the same distance is 

What is the value of 3+4[4-{13-4(7+2)+6}+9]