Question

The sum of 5th and 7th terms of an AP is 52 and other the 10th term is 46. Find the common difference of the AP​

Answer 1

Step-by-step explanation:

Given, sum of the 5th and 7th term is 52.

∴a+4d+a+6d=52

⇒2a+10d=52⟶(1)

And, the 10th term is 46.

∴a+9d=46

multiplying it by 2 we get,

2a+18d=92⟶(2)

Solving equations (1) and (2) we get,

8d=40

⇒d=5

Substituting the value of d in (1) we get,

2a+(10×5)=52

⇒2a=52−50

⇒a=1

Therefore, the required A.P. is,

1,6,11,16,21,26,31,.....

Answer 2

Answer:

5×7/52×46=35/2392

Step-by-step explanation:

hope its helpful