**hafiz borrows 7000 for 100 days at 9% per annum simple interest. what is the amount at the end of 100 days? how much is the interest charged?**

**Answer:**

Simple Interest = P*T*R/100;

P= Principle amount =7000;

T= Time in years =0.27397 years (100 days);

R= interest rate per annum = 9%;

SI= 7000*0.27397*9/100= 172.60 (This is the interest per 100 days);

The amount at the 100 days is = P+SI = 7000+172.60 = 7172.60

[Remember: SI = P*T*R, If you take R= 9% = 9/100]