1) What is Z's share of profit in a joint venture?. I) Y started business investing Rs. $80,000$. II) Z joined him after $3$ months. III) X joined after 4 months with a capital of Rs. $1,20,000$ and got Rs. $6000$ as his share of profit. A) All I, II and III B) I and III only C) II and III only D) Cannot be calculated with all (I, II,II) E) None of these Answer: Option DExplanation:From I, II and III, we get $X:Y:Z$ $=(120000\times 8)$ $:(80000\times 12)$ $:(x\times 9)$. Since Z's investment is not given, the above ratio cannot be given. $\therefore$ Given data is inadequate. $\therefore$ Correct answer is (D).