Find the missing figure in the given analogous pair:

Statement: "Do not lean out of the moving train", a warning in the railway compartment.

Assumptions:

I. Such warning will have some effect.
II. Leaning out of a moving train is dangerous.
III. It is the duty of railway authorities to take care of passengers' safety.

Statement - In deserts, camels are indispensable for people to travel from one place to another.

Conclusions

I. Camels are the only cheapest mode of transport

II. There are plenty of camels in deserts

The price of two articles are in the ratio $3:4$. If the price of first article is increased by $10\%$ and that of the second by $\mathrm{Rs}.4$, original ratio remains the same. The original price of the second article is

A man bought $30$ defective machines for $\mathrm{Rs}.1000$. He repaired and sold them at $\mathrm{Rs}. 300$ per machine. He got a profit of $\mathrm{Rs}.150$ per machine. How much did he spend on repairs?

Kriya deposits an amount of $\mathrm{Rs}.65800$ to obtain a simple interest at the rate of $14\%$ per annum for $4$ years. What total amount will Kriya get at the end of $4$ years?

A can complete a work in $20$ days and $\mathrm{B}$ in $30$ days working alone. $\mathrm{A}$ worked alone for $4$ days and then $\mathrm{B}$ completed the remaining work along with $\mathrm{C}$ in $18$ days. In how many days can $\mathrm{C}$ working alone complete the work?

Three taps are fitted in a cistern. The empty cistern is filled by the first and the second taps in $3$ h and $4$ h respectively. The full cistern is emptied by the third tap in $5$ h. If all three taps are opened simultaneously, then the empty cistern will be filled up in.