self Maths Puzzle

76^345*23^245=??
find the last digit?

Read Solution (Total 1)

6^345=last digit 6 (in 6 the last digit always remain same)
3^245=last digit 3(in 3 the digits repeat after every 4 sec.)
so 6*3=18
so ans is 8
11 years agoHelpfull: Yes(0) No(0)

self Other Question

The number of permutations of letters a,b,c,d,e,f,g such that neither the pattern 'beg' nor 'acd' occurs is A group of children stand holding hands in a large circle and a teacher walks around a circle giving each child in order a number 1,2,3,4,5,6,7,8...... so on.. If number 12 standing opposite number 30. How many children are there in the circle.