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What is the room number for the 125th room?

What is the room number for the 125th room?

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Hospital A has 500 patient rooms, each numbered with a three-digit number beginning at 001. However, the digits 4 and 9 are not used anywhere in any room numbers.

Asked by Rathan, Last updated: Nov 09, 2024

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2 Answers

Ken Burns

Ken Burns

Ken Burns
Ken Burns

Answered Apr 30, 2019

Var roomNumber = 1, x = 0

repeat {

x += 1

if String(x).contains("4") || String(x).contains("9") {

continue

}

roomNumber += 1

} while roomNumber <= 125

I get 186.

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John Smith

John Smith

John Smith
John Smith

Answered Sep 23, 2016

202

There are 77 4s and 9s from 001 to 125
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