The tens digit of `1!+2!+3!++73 !` is : 1 (2) 2 (3) 3 (4) 4

The ten's digit of 1!+2!+3!+ . . .+97! is

STATEMENT -1: The tens digit of 1! + 2! + 3! + 4! + 5! +........... + 50! is 1. STATEMENT-2 : The sum of divisors of 2^(4)3^(5)5^(2)7^(3) is 2^(5).3^(6).5^(3).7^(4) - 2.3.5.7.

If a digit is chosen at random from the digits 1,\ 2,\ 3,\ 4,\ 5,\ 6,\ 7,\ 8,\ 9 then, the probability that the digit is a multiple of 3 is (a) 1/3 (b) 2/3 (c) 1/9 (d) 2/9

The ten's digit in 1! + 2! + 3! + ………..+49! Is __________.

Which is the last digit of 1+2+3+……+ n if the last digit of 1 ^(3) + 2 ^(3) + ….. + n ^(3) is 1 ?

What is the units digit of (2)^(5)(3)^(3)(4)^(2) ?

Let A = {1,2,3,4} and f : A to A satisfy f (1) =2, f(2)=3, f(3)=4, f (4)=1. Suppose g:A to A satisfies g (1) =3 and fog = gof , then g = (a).{(1,3), (2,1), (3,2), (4,4)} (b).{(1,3), (2,4),(3,1),(4,2)} (c).{(1,3),(2,2),(3,4),(4,3)} (d).{(1,3),(2,4),(3,2),(4,1)}

How many numbers can be formed with the digits 1, 2, 3, 4, 3, 2, 1 so that the odd digits always occupy the odd places?

If the sum of the first ten terms of the series (1 3/5)^2+(2 2/5)^2+(3 1/5)^2+4^2+(4 4/5)^2+. . . . . , is (16)/5 m, then m is equal to: (1) 102 (2) 101 (3) 100 (4) 99

Locate the points: (1, 1), (1, 2), (1, 3), (1, 4) (2, 1), (2, 2), (2, 3), (2, 4) (1, 3), (2, 3), (3, 3), (4, 3) (1, 4), (2, 4), (3, 4), (4, 4)