how many teams of an ap 9,17,25 ....must be taken to give a sum of 636
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a=9 , d=8 ,Sn = 636
Sn = n/2[2a + (n-1)d]
636 = n/2[18 + (n-1)d]
now solve and calculate the value of n
Sn = n/2[2a + (n-1)d]
636 = n/2[18 + (n-1)d]
now solve and calculate the value of n
reusmohammed:
Sir can u Pls show me the full answer I want to check whether my steps are correct... Pls sir
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