if an AP of the first term is 2 the last term is 29 and the sum of the terms is 155 so find the common difference.
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a=2
l=29
sn=155
sn =n/2 (a+l)
155=n/2 (2+29 )
155=n/2 (31)
310=31n
n=10.
an=a+(n-1)d
29=2+(10-1)d
29=2+9d
29-2=9d
27=9d
d =3.
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l=29
sn=155
sn =n/2 (a+l)
155=n/2 (2+29 )
155=n/2 (31)
310=31n
n=10.
an=a+(n-1)d
29=2+(10-1)d
29=2+9d
29-2=9d
27=9d
d =3.
hope it helpful to u.
if it is helpful to u than mark me as brainleist.
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