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Start JEE / NEET / Foundation preparation at rupees 99/day !!
21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya
a
n=2 to n=1
b
n=5 to n=4
c
n=4 to n=3
d
n=3 to n=2
answer is D.
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