Q- Find the sum of all multiples of 7 lying between 500 and 900?
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504,511,.....896
It is a GP
Sum of n terms of GP=a(r^n-1)/r-1
If you find the number of 7s between 500 and 700 then you can use the above formula.
It is a GP
Sum of n terms of GP=a(r^n-1)/r-1
If you find the number of 7s between 500 and 700 then you can use the above formula.
SnehaMurali:
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