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Arithmetic Progressions

Question 7:

Find the 31st term of an A.P. whose 11th term is 38 and the 16th term is 73

Answer:

Given that,

a11 = 38

a16 = 73

We know that,

an = a + (n − 1) d

a11 = a + (11 − 1) d

38 = a + 10d (1)

Similarly,

a1...

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