which term of AP 3 15 27 39 ........ will be 132 more than its 54th term?
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Step-by-step explanation:
54th term = a+53d
=3+53(12)
=3+636
=639
639+132=771(given)
a+(n-1)d= 771
3+(n-1)12=771
(n-1)12=771-3
(n-1)12=768
(n-1)=768÷12
n-1=74
n=74+1
n=75
therefore its 75th term
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