Question

what is the sum of the first 20 natural numbers which is multiple of 5?
a.1050
b.1150
c.1250
d.1350​

Answer 1

Step-by-step explanation:

Multiple of 5 which are natural numbers = 5,10,15,20,25,30,35,40,45,50,55.....In this way u can collect multiples of 5 till u get 20 numbers and plus all the numbers you will get the answer