Question

question no 14 plz solve...​

Answer 1

A.P:12,16,20,.............,248

a=12, d=4, an=248, n=?

➡an=a+(n-1)d

➡248=12+(n-1)4

➡248-12=4 (n-1)

➡236/4=n-1

➡59=n-1

➡n=60

Hope it help