Question

The price of 3 Accounting Books and 5 Business Mathematics books is 800 and that of 6 Accounting Books and 3 Business Mathematics books is 900. Find the Cost of an Accounting Book and a Business Mathematics book.
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Answer 1

Step-by-step explanation:

Solution

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For 1:

We have 6 books of Economics, 3 of Mathematics and 2 of Accountancy

Arranging the books within the branches:

Economics - 6!

Maths - 3!

Accountancy - 2!

Thus the arranging branches are 3!

Thus, total arrangement

6!×3!×2!×3!=32,400

For 2: We have to add all the books together then arrange it

6+3+2=11

Thus the total arrangement are:

11!

39,916,800