Question

find the sum of all 2 digit positive numbers divisible by 3

Answer 1

a = 12, d = 3, l = 99, n = 30
Sn = n/2( a + l )
= 30/2 ( 12 + 99 )
= 15 ( 111 )
= 1665. ANSWER.
thanks...

Answer 2

Answer:

Step-by-step explanation:

a = 12, d = 3, l = 99, n = 30

Sn = n/2( a + l )

= 30/2 ( 12 + 99 )

= 15 ( 111 )

= 1665

Thank u