Question

Sum of the number of primes between 16 to 80 and 90 to 100 is

(A) 20

(B) 18

(C) 17

(D) 16 of​

Answer 1

Answer:17

Step-by-step explanation:prime numbers between 16 and 80 = 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79

No. of prime numbers between 16 and 80 = 16

prime numbers between 90 and 100 = 97

No. of prime numbers between 90 and 100 = 1

Therefore, sum of the number of primes between 16 to 80 and 90 to 100 = 16 + 1

= 17

So, the option c) 17 is correct .

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