Question

(iv)' Find the sum of first 100 even natural numbers divisible by 5.
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Answer 1

Answer:

Step-by-step explanation:

this is an AP

10,20,30.............

a=10 d=10

S₁₀₀=100/2[2a+[n-1]d]

      =50[2*10+99*10]

      =50[20+990]

     =50*1010

    =50500ans