Question

If n is a prime number and 9 n is less than 180 and greater than 81 then 13n -7 is

Answer 1

Answer:

Step-by-step explanation:

Given  

If n is a prime number and 9 n is less than 180 and greater than 81 then 13 n -7 is

ANSWER

 Given  

According to question we have

  9 n < 180 > 81

 Taking 9 as common factor we get

   n < 20 > 9

 Now n is a prime number between 9 and 20. So prime numbers are

 11, 13, 17 and 19

  Substituting this in the given equation we get

     13 n – 7

     13 (11) – 7 = 143 – 7 = 136.

      13(13) – 7 = 169 – 7 = 162

      13 (17) – 7 = 221 – 7 = 214

      13 (19) – 7 = 247 – 7 = 240

So the numbers are 136, 162, 214 and 240