Question

5. Which is the 50th odd number?​

Answer 1

Answer:

1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29,31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63,65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97,99. Odd numbers are those that are not divisible bytwo.

Answer 2

Concept:

Odd numbers can be defined as the numbers which are completely divisible by 2.

Given:

The first term and difference.

Find:

50th odd number.

Solution:

This can be calculated using Arithmetic progression.

Having the a = 1 and d = 2, as two odd numbers are differ by 2, where a is the first term and d is a common difference.

nth term is calculated using,

x = a + ( n - 1 )d

here, x is the nth term and we have to calculate the 50th term.

Substituting the values,

x = a + ( n - 1 )d

x = 1 + ( 50 - 1 ) × 2

x = 1 + ( 49 × 2 )

x = 1 + 98 = 99

Hence, the 50th odd number is 99.

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