How many terms of the A.P. 17+15+13+… has the sum 72? Explain the double answer.

How many terms of the A.P. 54, 51, 48, ... has the sum 513 ? Explain the double answer.

How many terms of the A.P. 54, 51, 48, ... has the sum 513 ? Explain the double answer.

How many terms of the A.P. 22+26+30+… has the sum 400?

How many terms of the A.P. 22+26+30+… has the sum 400?

How many terms of the A.P. 22, 26, 30, ... has the sum 400?

How many terms are there in A.P

Find the number of terms of the A.P. 63,60,57......so that their sum is 693.Explain the double answer.

(a) How many terms of the A.P. 6 + 10 + 14 + ... has the sum 880 ? (b) How many terms of the A.P. 3 + 9 + 15 + ... has the sum 7500 ?

(a) How many terms of the A.P. 6 + 10 + 14 + ... has the sum 880 ? (b) How many terms of the A.P. 3 + 9 + 15 + ... has the sum 7500 ?

How many terms of the progression 54 + 51 + 48 +... has the sum 513 ? Explain the double answer.