Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 9 Answered

The simple interest ona certain sum is Rs. 225 and the compound interest on the same sum and rate for 2 yrs is Rs. 153. Find the rate and principal.
Asked by laskar.ranadeep | 22 Apr, 2020, 11:34: AM
answered-by-expert Expert Answer
The question should be: 
The simple interest ona certain sum is Rs. 225 and the compound interest on the same sum and rate for 2 yrs is Rs. 153. Find the rate and principal.
 
Solution:
Given: S.I. = 225, N = 2 yrs C.I. = 153 and n = 2 yrs
We know that, 
Simple interest = (P x N x r)/100
225 = (P x 3 x r)/100
r/100 = 75/P ... (i)
C.I. = A - P
153 = A - P
Using the formula for amount
153 equals P open parentheses 1 plus r over 100 close parentheses to the power of n minus P rightwards double arrow 153 equals P open parentheses 1 plus 75 over P close parentheses squared minus P rightwards double arrow 153 equals open parentheses P plus 75 close parentheses squared over P minus P rightwards double arrow 153 P equals P squared plus 5625 plus 150 P minus P squared rightwards double arrow 3 P equals 5625 rightwards double arrow P equals 1875
Answered by Renu Varma | 24 Apr, 2020, 11:03: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
ICSE 9 - Maths
Saving account deposit and interest calculation recurring deposit amount and interest calculation on maturity. teacher can u tell me the contents to include in this project
Asked by 2016159 | 25 Jun, 2024, 11:57: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
Class 9 ICSE Maths
question image
Asked by yeolekarprasad91 | 11 Jun, 2024, 11:45: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
The simple interest in 3 years and the compound interest in 2 years on a certain sum of money at the same are respectively ?1200 and ?832. Calculate the difference between compound interest and simple interest for 3 years.
Asked by bhartiujjawal91 | 24 May, 2024, 09:37: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
Find the rate of compound interest on rupees 4000 so that it can amount to rupees 4630.50 in 3 years
Asked by uttamasingh422 | 22 Apr, 2023, 10:04: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
find the sum on which the compound interest for 3 years at 10%per annum amounts to ?1655
Asked by gamertejas57 | 27 Jun, 2022, 18:08: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
1
question image
Asked by daksh12353abh | 04 Jun, 2022, 17:49: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
find the CI on 64004 one and half years at 5% pa interesting compounded half yearly
Asked by krishnasangam2008 | 11 Apr, 2022, 21:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
Find find amount and compound interest on rupees 12000 for 5 by 2 years at 5% per annum.
Asked by ritasingh2502 | 13 Jul, 2021, 12:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
calculate ci on 9000 for 2 year at 12%p.a
Asked by payalpshah10 | 28 Jun, 2021, 16:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
pankha invested 75000 for three years on the condition that she will get the rate of interest for 2 years at 12% and the third year as 15% what will be the compound interest when compounded annually
Asked by vartikaagarwal61.9soc | 09 Jun, 2021, 20:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Are You a Teacher or a Parent Seeking Customised Tests? Click here
×