Statement I states that Ram and Shyam together complete \( \frac{1}{6} \) of the work. Shyam completes \( \frac{1}{8} \). Thus, Ram’s rate is \[ \frac{1}{6} - \frac{1}{8} = \frac{1}{24}, \] implying Ram needs 24 days alone, which is *true*.
In Statement II, earnings are *proportional* to the number of *people* and *hours worked*. The provided earnings for 9 persons working 6 hours daily are incorrect, rendering Statement II false.
A box contains 16 red, 12 white, and 15 yellow identical marbles. A man picks one marble at a time without replacement. How many times must he pick a marble to be 100% certain of picking at least 3 white marbles?