Bissoy.com
Doctors Medicines MCQs Q&A

The digit in the unit’s place of a three - digit number is thrice the digit in the ten’s place and the digit in the hundred’s place is twice of the digit in the ten’s place. If the sum of the three - digits of the number is 12, what is the three digit number?

The digit in the unit’s place of a three - digit number is thrice the digit in the ten’s place and the digit in the hundred’s place is twice of the digit in the ten’s place. If the sum of the three - digits of the number is 12, what is the three digit number? Correct Answer 426

Let, ten’s place digit = x

∴ Unit’s place digit = 3x

∴ Hundred’s place digit = 2x

According to problem,

⇒ x + 3x + 2x = 12

⇒ x = 2

∴ Hundred’s place digit = 2x = 4

∴ Ten’s place digit = x = 2

∴ Unit’s place digit = 3x = 6

∴ The 3 digit number = 426

Related Questions

In a six-digit number, the digit of thousands place is 4. The digit at ten's place is double that of digit at thousand's place and digit at hundreds places is half of the digit at thousand’s place. The digit at unit's place is half of the digit at hundred's place. Digit at Ten thousand's place is sum of the digits at thousands and hundreds place and digit at lakh's place is half the digit at ten thousands place. What will be the number?
In a three-digit number, the digit in the unit's place is 75% of the digit in the ten's place. The digit in the ten's place is greater than the digit in the hundred's place by 1. If the sum of the digits in the ten's place and the hundred's place is 15. What is the number ?
In a five digit number, the digit at ten’s place is 8, digit at units place is one-fourth of the digit at ten’s place, the digit at thousands place is 0, digit at hundreds place is twice that of units place and the digit at ten thousand place is thrice the digit at unit’s place. What is the number?
The following coding system shows the letter codes for numbers. Excluding the exceptions mentioned below, the digits in the question are to be transformed into letter codes as follows: Digit 0 1 2 3 4 5 6 7 8 9 Letter Code A B C D E F G H I J Exceptions: i. If a number begins with a nonzero even digit, that digit should be coded as N. ii. If a number begins with a nonzero odd digit, that digit should be coded as P. iii. If a number begins and also ends with non-zero even digits, those two digits at the extreme ends should be coded as Q. iv. If a number begins and also ends with nonzero odd digits, those two digits at the extreme ends should be coded as W. v. If a number's middle digit is a multiple of 2 that digit should be coded as Z. Barring these exceptions, the other digits should be codified as per the above-mentioned letter codes. Find the appropriate code for the following number-group 3214067
In a 4-digit number, the sum of the first two digits is equal to that of last two digits. The sum of the first and last digits is equal to third digit. Finally, the sum of the second and fourth digits is twice the sum of the other two digits. What is the third digit of the number?
In a three-digit number, the digit at the hundred’s place, is four times the digit at the unit’s place and the sum of its digits is 17. If the hundred’s place digit and unit place digit are reversed, the number is reduced by 594. What is the original number?
A three digit number is such that this number itself is divisible by the sum of its digits. The sum of hundreds and unit digits is 6 while the sum of the ten’s and unit’s digit is 5. What is the ratio of unit’s and ten’s digit?
If you add up the digits of a three -digit number you get 18 . The ten's digit is twice the hundred's digit and the hundred's digit is 13 the unit's digit. What is the number?
In a five-digit number, the digit at the hundreds place is double of the digit at the unit place and the digit at ten thousand place is double of the digit at the hundreds place. The digit at tens place is the smallest odd prime number and the digit at thousands place is three times the unit digit. If the digit at the unit place is the even prime number, then the number is
Which of the following options is NOT an example of a number tried with the following properties? 1. Sum of the digits of the third number is twice the sum of the digits of the first number. 2. Sum of the digits of the second number is thrice the sum of the digits of the first number.