Question

write to he smallest two digit even multiple of 3​

Answer 1

Answer:

2 digit numbers which are multiples of 3: 12, 15, 18, 21, …, 90, 93, 96, 99. Consider this A.P. : a = 12, d = 3, 99 = 12 + (n- 1) (3) => n - 1 = 87/3 = 29 => n = 30. There are 30 multiples of 3 in all 2 digit numbers.