12. A company which operates a batch costing system is fully integrated with the financial accounts. During a particular period materials worth ` 30,000 and ` 20,000 were issued to production and Factory Maintenance respectively. The following control A/cs are being maintained. (i) Store ledger control A/c. (ii) Work-in-progress control A/c. (iii) Production overhead control A/c. (iv) Finished goods control A/c. From the above information, identify which account/accounts will be debited to effectuate the issuance of materials:

The value of $\displaystyle N$ in $\displaystyle N! + \frac{1}{7!} = \frac{1}{8!}$ is

A person can go from place 'A' to 'B' by 11 different modes of transport but is allowed to return to 'A' by any mode other than the one earlier. The number of different ways in which the entire journey can be completed is:

If a man travels from place A to B in 10 ways then by how many ways can he come back by another train?

If $\displaystyle \frac{n!}{10(n-1)!} = \frac{(n-1)!}{(n-3)!}$ find 'n'.

Which of the following is a correct statement.

$\displaystyle ^nP_3 = 2 \cdot ^nP_2$. Find $\displaystyle n$.