Karun borrowed ₹12,000 from Varun and ₹15,000 from Tarun, each for two years at the same rate of simple interest per annum. If he paid an interest of ₹1,680 to Varun at the end of 2 years, then what is the interest that Karun paid to Tarun at the end of the 2-year period?

₹2,100

Simple Interest = \(\frac{Principal ×Rate × Time }{100}\)

ATQ,

1680 = \(\frac{12000 ×Rate × 2}{100}\)

Rate = 7%

Now ,

Simple interest Paid by karan to Tarun

= \(\frac{15000 ×7 × 2}{100}\)

= Rs. 2100