Exercise 4
31.The last digit of the number obtained by multiplying the numbers 352 x 358 x 773 x 444 x 451 will be?
a) 0
b) 8
c)9
d) 2
32) What is the last digit of (2012)2012 ?
a)2
b)4
c) 6
d) 8
33)What is the units place of the sum given (12)41 + (66) 66 + (25) 15 + (51) 61+ 4321
a)1
b)5
c)8
d)6
34)What is the units place of the sum given (16)12 + (13) 15 + (17) 13 + (71) 69+ 567 + 13 ?
a)1
b)3
c)8
d) 5
35) What is the last two digits of (7)2012 ?
a)21
b)61
c)01
d)41
36) Find the last two digits of 7156747?
a) 61
b) 01
c) 41
d) 91
37) Find the last two digits of 51456 x 61567? ?
a) 21
b)91
c)61
d)None of these
38) If 1A64815 is divisible by 3, which of the following will be the value of A?
a) 0
b) 2
c) 7
d) 5
39) If the number 347A25B is divisible by 15, (in decimal notation, where A, B are digits > 0), then what is the minimum value of A + B?
a) 6
b)2
c)7
d)5
40) If B4B2B (in decimal notation, where A, B are digits > 0) is divided by 15, then the smallest value of B is
a) 7
b) 6
c) 5
d) 4
