Question

What is the ratio of the-
(a) number of even numbers to odd numbers from the set of natural numbers from
30 to 50?
(b) prime numbers and composite numbers from the set of natural numbers from
1 to 20?

please send step by step explanation​

Answer 1

sorry?? please answer??

Answer 2

Answer:

8:11

Step-by-step explanation:

(a)

• Even Numbers from 30 to 50:

30, 32 , 34, 36, 38 , 40, 42, 44, 46, 48, 50

Number of Even Numbers from 30 to 50 = 11

• Odd Numbers from 30 to 50:

31, 33, 35, 37, 39, 41, 43, 45, 47, 49

No. of Odd Numbers from 30 to 50 = 10

--- The Number of even numbers to odd numbers from set of natural numbers from 30 to 50 =

Required Ratio = 11:10

(b)

• Prime Numbers from 1 to 20:

2, 3, 5, 7, 11, 13, 17, 19

No. of Prime Numbers from 1 to 20 = 8

• Composite Numbers from 1 to 20:

1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18

No. of Composite Numbers from 1 to 20 = 11

--- The Number of Prime numbers and composite numbers from set of natural numbers from 1 to 20 =

Required Ratio = 8:11

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