Question

how many possible combinations of 1 pen and 1 pen holder can be formed from the given pens and pen holders?​

Answer 1

Answer:

15

Step-by-step explanation:

Multiply number of pens by number of pen holders.

5x3=15

Answer 2

Answer:

Step-by-step explanation:

We are given 5 pens and 3 holders

We need to make combinations of 1 pen and 1 holder

We can do this using combination

• For choosing 1 pen out of five we use 5C1
• For choosing 1 holder out of 3 we use 3C1
• Total number of ways = 3C1x5C1=3x5=15