यदि किसी a.p. का सार्व अंतर 5 है तो a18-a13 क्या है
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answer will be --
a18 = a+17d
A13= a+12d
d= 5
by = a+17d-(a+12d)
= 85- 60= 25 ans.
a18 = a+17d
A13= a+12d
d= 5
by = a+17d-(a+12d)
= 85- 60= 25 ans.
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