A sum was put at simple interest at a certain rate for 3 years. Had it been put at 2% higher rate, it would have fetched Rs 360 more. Find the sum.

A sum was put at simple interest at a certain rate for 3 years. Had it been put at 2% higher rate, it would have fetched Rs 360 more. Find the sum.

A. Rs.4000
B. Rs.9000
C. Rs.5000
D. Rs.6000
Let sum = P and original rate = R. Then
[(P * (R+2) * 3)/100] – [ (P * R * 3)/100] = 360
3P*(R+2) – 3PR = 36000
3PR + 6P – 3PR = 36000
6P = 36000
P = 6000

A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:

A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:

A. 5%
B. 8%
C. 12%
D. 15%
S.I. for 3 years = Rs. (12005 – 9800) = Rs. 2205.
S.I. for 5 years = Rs.[ (2205/3) x 5 ] = Rs.3675
Principle = Rs.(9800-3675) = Rs.6125
Rate=12%

If there is a total of 104 weekly instalments and a third deposit, find the interest charged

If there is a total of 104 weekly instalments and a third deposit, find the interest charged

A. 237.55
B. 337
C. 443
D. 334
Cash price = $3695
Deposit =1/3 of $3695
= $1231.67
Loan amount = $3695.00 − $1231.67
= $2463.33
Total cost of loan = $25.97 × 104
= $2700.88
Interest charged = total amount − loan
I = A − P
= 2700.88 − 2463.33
= 237.55