Question
There is an Arithmetic Progression with 10 terms. The Sum of numbers at even places is 15 and Sum of numbers at odd places is 252. Find the common difference.
Answer: Option B
:
B
Let a1 be the first term.. then the second term can be written as a1+d.Similarly we write all even in terms of odd.
a1+a3+a5+a7+a9=252anda2+a4+a6+a8+a10=15
5a+20d=252
5a+25d=15
d=0.5
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:
B
Let a1 be the first term.. then the second term can be written as a1+d.Similarly we write all even in terms of odd.
a1+a3+a5+a7+a9=252anda2+a4+a6+a8+a10=15
5a+20d=252
5a+25d=15
d=0.5
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