Question

How many terms are there in the series, 0.5, 0.53, 0.56,......, 1.1 ?​

Answer 1

ANSWER: 21.

Step-by-step explanation :

0.5, 0.53, 0.56,... 1.1

From the above AP ;

a= 0.5

d= 0.03

Tn= 1.1

Using Tn= a+ (n-1)d

1.1 = 0.5 + (n-1)* 0.03

1.1 - 0.5 = (n-1) 0.03

0.6 = 0.03n - 0.03

0.06 + 0.03 = 0.03n

0.63 = 0.03n

0.63/ 0.03 = n

21 = n

Therefore, there are 21 terms in the series.

I Hope this helps :)