Question

81 x 82 x 83 x ... What is the last digit of the value of x 89 ? (explain in steps)
(a) 0
(b) 2
(c) 6
(d) 8

Answer 1

Answer:

option A)

Step-by-step explanation:

Hence, the last digit is . The ans is clearly zero since: 81*82*83*84*85*86*87*88*89 the last digit will be zero becoz u hve 1,2,3,4,5,6,7,8,9, so only 10 is pending bt u can't write it as 810 so u are jst writing 0...