Question

If 17th term of an AP exceeds its 10th term by 7. The common difference is
(a) 2
(b) -1
(c) 3
(d) 1

Answer 1

Answer:

3 is the answer of the answer

Answer 2

Hi , your answer is (d) 1 .

Step-by-step explanation:

17th term of an AP exceeds its 10th term by 7 means :

a17 = a10 + 7________(1)

an = a+(n-1)d

a17 = a+(16)d _________(2)

a10 = a+(9)d __________(3)

When we substitute (2) & (3) in (1) :

a+16d=a+9d+7

a-a+16d=9d+7

16d-9d=7

7d=7

d=7/7

d=1

Hope this helps you !