campus Maths Puzzle

Q. What is the sum of digits of Number obtain (10^3)^8-8.

Read Solution (Total 5)

campus Other Question

Q. There is a bulb inside the room and tree switches are out side the room. you have to find the switch connected to bulb by only once going inside the room.
Q. There was a big stone of 40 kg in grocery shop by which he used to weight. one day the stone fall down by his helper and break down in to four small pieces. inspite of being angry upon his helper the grocer said him thank you very much.because now he can weight all the weight using these pieces from 1 to 40 kg .find out the weights of four small pieces of stones