एक पुस्तक का 13 भाग पढ़ने के बाद, 100 पृष्ठ शेष बचते हैं। पुस्तक में कुल कितने पृष्ठ हैं?

A fraction is such that if double of the numerator is increased by 10% and triple of the denominator is decreased by 30%, the resulting fraction becomes equal to 11% of 1621. The original fraction is:

In a certain office, 13 of the workers are women, 12 of the women are married, and 13 of the married women have children. If 34 of the men are married and 23 of the married men have children, what part of the total workers are without children?