13. The simple interest one a sum of 5 years is 2/5 of the sum. Find the rate of interest,
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Answer:
rate=8%
Step-by-step explanation:
term=5years
intrest=2/5 of p
i=prt/100
2/5p=pr×5/100
divide by p
r=2/5×100/5
r=8%
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