Question

If one –eighth of a pencil is black , half of the remaining is yellow and the remaining 3 ½ cm is blue , then the total length of the pencil is?

The height of a room is 40% of the semi-perimeter of the floor. It costs Rs. 260 to paper the walls of the room with paper 50cm wide at the rate of Rs.2 per meter allowing an area of 15m2 for doors and windows. The height of the room is?                   
 
Number of  keystrokes needed to type numbers from 1 to 1000 is ?

Answer 1

heres the answer ok.....