Question

D 12 (ix) a = 3,n = 8 और S = 192 दिया है। d ज्ञात कीजिए।

an = a + (n-1) .d
192=3 +(8-1) •d
192=3 +7d
192-3 = 7d
189=7d
27= d​

Answer 1

Answer:

d=27

u have already solved it bro