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?
Answers
Answer:
Step-by-step explanation:
So odd and even numbers from 30–50. Odd : Even = 440:400 which we can simplify up to 11:10.
Step-by-step explanation:
2, 3, 5, 7, 11, 13, 17, 19 are all the primes between 1 to 20. 4, 6, 8, 9, 10, 12, 14, 15, 16 and 18 are all the composite numbers between 1 to 20.
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감사☺☺☺
Answer:
(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 = \frac{11}{10}1011
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 = \frac{8}{11}118
Required Ratio = 8:11
Step-by-step explanation:
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