The digit in the unit’s place of a number is equal to the digit in the ten’s place of half of that number and the digit in the ten’s place of that number is less than the digit in unit’s place of the half of the number by 1. If the sum of the digits of the number is 7, then what is the number?

(a)

34

(b)

52

(c)

162

(d)

Data inadequate

Question

Question ID - 54144 :-

The digit in the unit’s place of a number is equal to the digit in the ten’s place of half of that number and the digit in the ten’s place of that number is less than the digit in unit’s place of the half of the number by 1. If the sum of the digits of the number is 7, then what is the number?

(a)

34

(b)

52

(c)

162

(d)

Data inadequate

1 Answer

5876 Votes

score 3537 · Accepted Answer

Answer Key : (b) -

Let the ten’s digit be and the unit’s digit be

Then,

And

Solving we get

Hence, required number = 52.

The digit in the unit’s place of a number is equal to the digit in the ten’s place of half of that number and the digit in the ten’s place of that number is less than the digit in unit’s place of the half of the number by 1. If the sum of the digits of the number is 7, then what is the number?
(a)	34	(b)	52	(c)	162	(d)	Data inadequate

In a two-digit number, the digit in the unit’s place is more than twice the digit in ten’s place by 1. If the digits in the unit’s place and the ten’s place are interchanged, difference between the newly formed number and the original number is less than the original number by 1. What is the original number?
(a)	25	(b)	37	(c)	49	(d)	52