Question

Find the sum of first positive integers divisible by 6

Answer 1

Hey there!

Here,
a = 6
d = 6
l = 240

Sn = n/2 × (a + l )
S40 = 40/2 × (6 + 240)
= 20 × 246
= 4920

SOLUTION IN THE ABOVE PIC. IS ALSO FOR REFERENCE


Hope it helped
#EshanSingh1