simple and compound interest Model Questions & Answers, Practice Test for ibps po prelims 2023
ibps po prelims 2023 SYLLABUS WISE SUBJECTS MCQs
Number System
Simplification
Surds & Indices
Ratio & Proportion
Profit & Loss
Time & Work
Simple Interest & Compound Interest
Mensuration: Area & Volumes
Girish invested a certain amount at the rate of 8% p.a. for 6 year to obtain an amount of Rs. 28,046. How much amount did Girish obtain as simple interest?
Answer: (b)
Let the principal be = Rs.100
∴ Simple interest
= ${100×8×6}/100$ = Rs.48
∴ Amount (100 + 48) = Rs.148
∴ When the amount is = Rs.148, the principal = Rs.100
∴ When amount = Rs.28046, the principal
= $100/48$ × 28046 = Rs.18950
∴ Simple interest = (Rs.28046 – 18950) = Rs.9096
A sum of money borrowed at 10% p.a. for two years at compound interest amounts to Rs. 14520. Find the sum borrowed.
Answer: (a)
Amt=P$(1+10/100)^2$
$14520=P(110/100)^2$ or
P=$14520×100/110×100/110=12,000$
What amount a man would have received on a principal of Rs. 4000 after two yr simple interest @ 5% per annum ?
Answer: (a)
A = P$(1+ r/{100})^n = 4000(1+5/{100})^2$
= 4000 × ${21}/{20} = {21}/{20}$ = Rs.4410
The difference between CI and SI on Rs.8000 for 3 yrs at 2.5% p.a. is
Answer: (c)
Difference = ${\text"Sum"×r^2(300+r)}/(100)^3$
$={8000×2.5×2.5(300+2.5)}/{100×100×100}$
$={8×25×25×3025}/{100×100×100}=121/8$ = Rs. 15.125
If the compound interest accrued on an amount of Rs. 14500 in two years is Rs. 4676.25, what is the rate of interest p.c.p.a ?
Answer: (a)
C. I $[(1 + r/{100})^T - 1]$
4676.25=14500$[(1 + {r/{100}})^2-1]$
⇒${4676.25}/{14500} = (1 + {r}/{100})^2$ - 1
⇒${4676.25}/{14500} + 1 = (1 + {r}/{100})^2$
⇒${4676.25 × 14500}/{14500} = (1 + {r}/{100})^2$
⇒$√{{19176.25}/{14500}} = 1+r/{100}$⇒$√{1.3225}$ = 1+$r/{100}$
⇒$√{{13225}/{10000}}$= 1+$r/{100}$
⇒${115}/{100} = 1 + {r/{100}}⇒{r/{100}} = {115}/{100}-1$
⇒$r/{100} = {115 - 100}/{100}⇒{r/{100}} = {115}/{100}$
⇒r = 15%
ibps po prelims 2023 IMPORTANT QUESTION AND ANSWERS
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Top 200 Time and Work Questions Quiz For IBPS PO Pre 2023 »
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Ratio and Proportion MCQ Test PDF IBPS PO Prelims 2023 »
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New Simplification Aptitude Questions For IBPS PO Prelims »
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