Question

find the unit digit in the product of first 50 odd natural number​

Answer 1

Answer:

50 can be the correct answer

Answer 2

Answer:

5

Step-by-step explanation:

Given :

To find the unit digit in the product of first 50 odd natural numbers,.

Solution :

We know that product odd numbers are :

1 × 3 × 5 × 7 × .... × 97 × 99

We know that ,

products of 5 ends with unit digits with either 5 ( for odd multiplicand) or 0 ( for even multiplicand) ,.

As there are only odd multiplicands in this product,.

We know that product of odd numbers is always odd number

We get,

5 × (1×3×7×...×97×99) = 5 × (product ofodd numbers) = 5 × (odd number)

⇒ unit digit contains 5 in this product,.