Question

In an ap the sum of first term third term and fifth term is 39

Answer 1

Answer:

please complete your question.

Answer 2

Answer:

The sum of the first 30 terms is 2460.

Step-by-step explanation:

given that:

a₃=32

or  a+2d=32 ---------------(i)

a₅=40

or  a+4d=40 ----------------(ii)

On subtracting (i) from (ii), we get 2d=8

or d=4

Now,

a+2d=32

a+8=32

a=24

Then sum of first 30 terms :

S₃₀=$\frac{n}{2}$[2a+(n-1)d]

S₃₀=$\frac{30}{2} [2*24+29*4]$

S₃₀=15(48+116)

S₃₀=15*164

S₃₀=2460.

Hence, the sum of first 30 terms in 2460.  

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