Question

28. Kanchan is thinking of a 5-digit number. The unit's place digit is an odd prime number.The ten's place digit is the predecessor of thousand's place digit. The hundred's place digit is the smallest odd number. The ten thousand's place digit is an even prime number. There are only 2 even digits in
the number. What could be the number Kanchan is thinking of ?
(B) 23183
(D) 29185
(A) 23180
(C) 29182​

Answer 1

The number is multiple of 5. So, one's place digit is either 0 or 5.
Highest common factor of 16 and 24 is 8
∴ Ten's place digit of the number is 8
Smallest odd number is 1
∴ Hundred's place digit of the number is 1
2 is the only even prime number
∴ Ten thousand's place digit of the number is 2
Sum of ten thousand's place and hundred's place digit=2+1=3
∴ Thousand's place digit of the number is 3×3=9
Given that, onl 2 even digit are there in the number
∴ one's place digit of the number should be 5
So, the required number is 29185

Answer 2

Answer:

29185

Step-by-step explanation:

29185 is your answer mate.