X is a 30 digit number starting with the digit 4 followed by the digit – McqOptions

MCQOPTIONS

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» B. 91 digits

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