Question

find
d the sum first 50 multiples of 5​

Answer 1

Answer:

youranswer is 250.

Step-by-step explanation:

I hope your answer is write.

Answer 2

First number divisible by 5 = 5

Second number divisible by 5 = 10

Last number divisible by 5 before 50 = 50

Therefore, the A.P formed is

5, 10, ...., 50

Here,

a = 5

d = 10 - 5 = 5

an = a + (n-1)d

an = 50

ie, 50 = 5 + (n-1)5

After solving, we get n = 10

Sum of 1st 50 multiples of 5 = Sn

Sn = n/2(2a+(n-1)d)

After solving, we get Sn = 250

I hope this is the crt answer.

I hope this is the crt answer.Answer by Agnivesh Priyadarsanan from Kerala, India