Question

the sum of 5th and 7th term of an ap is 52 and the 10th term is 46 find the difference of the ap
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Answer 1

Answer: d=5

Step-by-step explanation:

a5+a7=52

a10=46

[a+4d]+[a+6d]=52

2a+10d=52.........[1]

a+9d=46.............[2] multiply by 2

2a+18d=92...............[3]

[3]-[1]

d=5