Subject: General Aptitude · Chapter: Number System · Exam: · Marks: · Difficulty:
Find the smallest number which when multiplied by 9 gives the product as 1 followed by a certain number of 7s only.
Answer
Answer (as printed):
Explanation
The least number having 1 followed by 7s, which is divisible by 9, is 177777, as $1+7+7+7+7+7=36$ (which is divisible by 9). Required number = $177777 \div 9 = 19753$.
Explanation as extracted from the printed page; notation may be imperfect.