Directions : What should come in place of the question mark (?) in the following number series? 

55 109 ? 433 865 1729 

Directions : What should come in place of the question mark (?) in the following number series? 

7 17 54 ? 1098 6591 

A clock only with only dots marking 3, 6, 9 and 12 positions has been kept upside down in front of mirror. A person reads the time in the reflection of the clock as 4.50. What is the actual time? 

Tonu invested 10 % more than the investment of Monu and Sonu invested 10 % less than the investment of Monu. If the total investment of all the three persons is ₹ 60, 000, the investment of Monu is – 

Out of ₹ 20, 000 Narendra gives some amount on loan at simple interest rate 8 % per annum and rest amount at simple interest rate 4 / 3 % per annum. At the end of year he earns ₹ 800. The amount given at 8 % rate will be – 

What would be the printed price of a wallclock purchased at ₹380, so that after giving 5 % discount, there is 25 % profit? 

If 80 % of a number added to 80 gives the result as the number itself, then the number is: 

The three vertices of a parallelogram taken in order are (0, 1), (2, 3) and (4, 3) respectively, then the coordinates of the fourth vertex is –