Question

In a five-digit number, digit at ten's place is 4, digit at unit's place is one - fourth of ten's place digit, digit at hundred's place is 0, digit at thousand's place is 5 times of the digit at unit's place and ten thousand's place digit is double the digit at ten's place. Write the number.

Answer 1

According to the question,

Digit at ten's place =4

Digit at unit's place = $\frac{1}{4}$ of ten's place digit = $\frac{1}{4}$ x 4 = 1

Digit at hundred's place= 0

Digit at thousand's place = 5 x Digit at unit's place = 5x1=5

Digit at ten thousand's place = 2 x Digit at ten's place = 2 x 4=8

Required number = 85041