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18. Skeleton towers are generated as follows. How many blocks would be reeded to construct the 1001tower

Answer»

As this is simple intrest the intrest in each year wiil same.ex if sum is 900 an simple intrest is rs 20then first year SI amount is 900+20=9202nd year SI =920+20=940....3rd year Si=940+20=960by looking the above we can easily get the simple intrest i.e 960-940=20...so acc to question 3 yr SI=8154 yr SI=854so intrest=854-815=39for 1 yr it is39for 3 yr 39X3=117so sum(Principle)=815-117=698hope u got it.....

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