Question

In how many ways can 2 non- identical rings be worn in 5 fingers?

Answer 1

Answer:

4 ways of wearing it. Similarly, each one of the other rings can be worn in 4 ways.

Step-by-step explanation:

Hence, the required number of ways = 4 × 4 × 4 × 4 × 4 = 4 5 .

Answer 2

Step 1: Given data

No. of non-identical rings$=2$

Number of fingers the rings can be worn in$=5$

Number of ways rings can be worn$=?$

Step 2: Calculating number of ways

Number of ways to place first ring$=5$

Now, the second ring can be placed either on the 4 remaining fingers or above or below the first ring. Thus,

Number of ways to place second ring$=6$

Total number of ways$=5\times 6=30\ ways$

Hence, the number of ways $2$ rings can be placed on $5$ fingers is $30$.

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