Question

D. If the unit digit in (549 x 56 x 28* X 684) be
8, then what digit will be there in place of * ?​

Answer 1

Answer:

It is because you have to first the see the ones place in 549, 56 and 684. 9*6*4 gives 216. The ones place of 216 is 6. We have to see 6 * what gives a number which has the ones place as eight.