A website Maths Puzzle Category

What are last two digits of 72008
A.
21
B.
61
C.
01
D.
41

Read Solution (Total 3)

There is a pattern in the last digits. Since 7^2008 is a ridiculously huge number, we don't bother with computing it.

So 7^1=7
7^2=49
7^3=343
7^4=2401
7^5=16807
10 years agoHelpfull: Yes(1) No(2)

wts the answer ?? plzz explain it..?
10 years agoHelpfull: Yes(0) No(0)
c) 01
7^(4*(some value))=.....01
10 years agoHelpfull: Yes(0) No(1)

A website Other Question

Two circles both of radii 1cm intersect each other such that the circumference of each one passes through the center of the circle of the other. What is the area(in sq cm) of the intersecting region?

a. π/3 - √3/4

b. 2π/3 - √3/2

c. 4π/3 - √3/2

d. 4π/3 + √3/2 In Chess , a knight moves two squares in one direction and one square in another direction , ending up on the diagonally opposite corner of a 2*3 grid. Intervening squares can be occupied.Find the maximum number of the knights which can be placed on an 8*8 chess board so that no knight threatens another knight(can move into a square occupied by one of the another knights).
A. 34
B. 32
C. 30
D. None of these