Question

if the term of AP is 5 and common difference is -3 then sum of its 60 term is equal to
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Answer 1

Answer:

-5,010

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Step-by-step explanation:

• Sn = n/2 [ 2a + (n-1)d ]
• S 60 = 60/2 [ 2(5) + (60-1)*(-3) ]
• = 30 [ 10 + (59)*(-3) ]
• = 30 ( 10 - 177 )
• = (30)*(-167)
• = -5,010

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