Math, asked by praveenpraveen067, 1 year ago

Find the sum of all two digit natural numbers which are divisible by 5

Answers

Answered by advsanjaychandak
10

Answer:

Step-by-step explanation:

10,15.........95

L=a+(n-1)d

95=10+(n-1)5

85=5n-5

90=5n

n=18

Sum

Sn=n/2(a+l)

S18=18/2(10+95)

S18=9*105

945 is the answer

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