A decimal has 3 decimal places and is less than 1. Sum of digits in the tenths, hundredths and thousandths places is 20. Digits in the tenths and thousandths places are the same. Digit in the hundredths place is smaller than the digit in the thousandths place by 1.<hr> The decimal is <input min="0" type="number" id ="imp4pg170q8_1" class="lineinput" placeholder="?" />.