shavanease shavanease

16-05-2021
Mathematics

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A sum of money at simple interest amounts to 815 in 3 years and to 854 in 4 years. The sum is:

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tsanders625 tsanders625

16-05-2021

Answer:

Step-by-step explanation:

So the amount after 4 yrs = amount after 3 yrs plus interest for 1 year;

one year =854-815=39 rate of simple interest;

so 3 yrs x 39 simple interest = 117;

so 815-117 = 698

the sum is 698

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