Question

i) Write all the odd numbers between 30 and 60.​

Answer 1

Just as you observed there are 5 odd numbers in the 30s; 31, 33, 35,37 and 39. Likewise there are 5 odd numbers in the 40s, 50s, 60s, and 70s. Thus you are adding 25 odd numbers.

Answer 2

31,33,35,37,39,41,43,45,47,49,51,53,55,57,59

totally there are 15 numbers..

hope it will help you