An AP consist of 50 terms were 3rd term is 12 and last term is 106 find the 29term
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ap consists of 50 terms...
N=50
a3=12
a3=a+(3-1)d...........1
a50=106
a50=a+(50-1)d.............2
solving 1 and 2
a+49d=106
a+2d=12
on solving.,, 47d=94
d=2
put d=2 in eq 1
a+2×2=12
a+4=12
a=8
a29=a+28(2)
=8+56
=64
N=50
a3=12
a3=a+(3-1)d...........1
a50=106
a50=a+(50-1)d.............2
solving 1 and 2
a+49d=106
a+2d=12
on solving.,, 47d=94
d=2
put d=2 in eq 1
a+2×2=12
a+4=12
a=8
a29=a+28(2)
=8+56
=64
ganapriya:
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How to do it
if a3 is given take a.n as a+2d. iif a6 is given take a.n as a+5d. and so on
press on the answer may u get some options... try
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