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3 years ago

The fifth term of an AP is 25 and the fifteenth term is 75 .Find the 10th term

Mathematics

2 answers:

vladimir2022 [97]3 years ago

6 0

Answer: I think it's 50

Step-by-step explanation:

5 = 25

15 = 75

Presumeably, 10 = 50

BARSIC [14]3 years ago

4 0

Answer:

Step-by-step explanation:

5th term=a+4d

10th term=a+9d

15th term=a+14d

since

5th term=25 and the 15th term=75

so we find the value of unknown 'd' with is the common difference

a+4d=25

a+14d=75

-10d=-50

d=5

after finding the value of d we can now find the value of 'a'

a+4(5)=25

a=5

hence the 10th term can be obtained

a+9d

5+9(5)=50

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