if there are 60 terms in the ap 7,7+d,7+2d,.............152.find d
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60 terms => n=60
last term = a + (60-1)d = 152
So, 7 + 59d = 152
59d = 145
d = 2.46
last term = a + (60-1)d = 152
So, 7 + 59d = 152
59d = 145
d = 2.46
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