∴ 3-digit greatest number is 999 On adding I, we get 999 + 1 = WOO,
which is the least 4-digit number.
Information and Communication Technology MCQ - Number System
∴ 2234 + 84 -1273 = x + 123
⇒ 2234 + 84 - 1273- 123 = x
∴ x = (2234 +84) - (1273 + 123)
= 2318 - 1396 = 922
A number made by writing a digit 6 times is divisible by each of
7, 11 and 13. So, 555555 is divisible by each of 7,11 and 13.
