Question

The 24th term of an AP is twice its 10th term. Show that its 72nd term is 4 times its 15th term.


Class 10

Arithmetic Progressions

Answer 1

t24 = 2t10
a+23d=2a+18d
a=5d

t72=4t15
a+71d=4(a+14d)
76d=76d....(substitute a=5d)
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Answer 2

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Here is Your Answer....!!!!
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⭐Actually welcome to the concept of the SEQUENCE AND SERIES. ..

⭐Basically after solving we get this......
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