InterviewSolution
Saved Bookmarks
| 1. |
X is a 30 digit number starting with the digit 4 followed by the digit 7, then the number X3 will have (A) 90 digits (B) 91 digits (C) 92 digits (D) 93 digits |
|
Answer» Correct option is (A) 90 digits X = (47 ......) 30 digits Suppose (47)3 30digits = (2 + 2 + 2) digits in (47)3 Similarly (47)3 30digits = contains (30 + 30 + 30) digits = 90 digits. |
|