Number of squares on a chess board

How many squares (of any size) are there on a chess board ? Note that there are squares of size 1, 4, 9 etc. So we need to calculate total number of squares (of all possible sizes). Also expand your solution to the total number of rectangles on the chess board.

Number of Network address in Class-C of Ipv4

In the IPv4 addressing format, The number of networks allowed under the Class C address are: A) 214         B) 27         C) 221          D) 224 This Question is asked in GATE-2012 (CS) Exam

Welcome to tech ritambhara

Meaning of word ritambhara is a combination of spiritualism, enlightenment and knowledge. ritambhara is a state you will be in when you are filled with knowledge & enlightenment. We want you to in that state so far as you knowledge of computer science is concerned. -Kamal