Math, asked by samarth349, 10 months ago

The first term ot an A.P is
5, the last term is 45 and
sun is 400. Find the number
of terms and common
difference.​

Answers

Answered by savitabankar114
1

Step-by-step explanation:

Tn=a+(n-1)d

45=5+(n-1)5

45=5+5n-5

45=5-5+5n

45=0+5n

45divide5=n

9=n

Similar questions