Vijay
Last Activity: 3 Years ago
Answer- Rs 380
Explanation -
Case- 1
A/Q , Ramesh borrowed Rs 2000 at 2% per annum and cleared his dept after 2 yrs.
Therefore Principal amount = Rs 2000
Rate of interest = 2%
Given time = 2 yrs
Using the formula ,
Simple Interest (SI) = Principal Amount (P) x Rate of interest (R) x Time (T)
100
therefore, SI = 2000 x 2 x 2 = Rs 80 Amount ( after 2 yrs) = Rs 2080
100
Case- 2
A/Q , Ramesh borrowed Rs 1000 at 5% per annum and cleared his dept after 2 yrs.
Therefore Principal amount = Rs 1000
Rate of interest = 5%
Given time = 2 yrs
Using the formula ,
Simple Interest (SI) = Principal Amount (P) x Rate of interest (R) x Time (T)
100
therefore, SI = 1000 x 5 x 2 = Rs 100 , Amount ( after 2 yrs) = Rs 1100
100
Total Amount after 2 yrs = Rs 2080 + Rs 1100 = Rs 3180
As per Question he repaid the amount = Rs2800. with watch
so Cost of watch = Total Amount ( after 2 yrs ) – ( paid money )
= Rs 3180 – Rs 2800
= Rs 380
So the required answer is Rs 380.
Thankyou.
