Compound Interest Related Quantitative Aptitude Study Notes
Daily quiz, Math Short Tricks 0 CommentsCompound Interest very crucial topic for upcoming competitive examinations And arithmetic mean of given data is the sum of the given observations divided by number of observations and this type question always asking all Exams just like Classes IX-X and Classes XI-XII and Prepare for SBI, IBPS Bank PO, Clerk, InsuranceLDC, SSC CGL, IBPS, MBA, CAT, MAT, SBI-PO, RBI And Railway, Indian Army and other Govt. Exams. And Rajasthan, Delhi Police Related Study material All competitive Exams And Time management also very crucial part of gain good marks in the exam. so use wisely your precious time.
Amount = Principal + Interest
A= P (1+r/100) ^n
A= Amount,
P= Principal,
R= Rate %,
N= no. of years.
Compound Interest = [P (1+r/100) ^ N – P]
= P [(1+r/100) ^ n – 1]
Condition:-
(1).When interest is compounded annually,
Amount = P(1+r/100)^n
(2).When interest is compounded half yearly,
Amount = P(1+(r/2)/100)^2n
(3).When interest is compounded Quarterly,
Amount =P(1+(r/4)/100)^4n
(4)When interest is compounded annually but time is in fraction, say 3 whole 2/5 year
Amount = P(1+r/100)^3×(1+(2r/5)/100)
(5).When Rates are different for different years, say r1%, r2%, and r3% for 1st, 2nd and 3rd year respectively.
Then,
Amount = P(1+r1/100)×(1+r2/100)×(1+r3/100).
Present worth of Rs. x due n years hence is given by:
Present Worth = x/(1+r/100)
Question (1) 8000 रु० का 5 % वार्षिक दर से 3 वर्ष का चक्रवृद्धि ब्याज क्या होगा जबकि ब्याज वार्षिक देय है,
(1) 1350 रूपए
(2). 1261 रूपए
(3) 1400 रूपए
(4). 1450 रूपए
Answer—(2). 1261 रूपए
Question (2) 15000 रु० का 5 % वार्षिक दर से 3 वर्ष का चक्रवृद्धि ब्याज क्या होगा. जबकि ब्याज छमाही देय है ?
(1) 2200 रूपए
(2) 2350 रूपए
(3) 2395.40 रूपए
(4) 2495.40 रूपए
Answer—(3) 2395.40 रूपए
Question (3) 20000 रु० का 8 % वार्षिक दर से 9 महीने का चक्रवृद्धि ब्याज ज्ञात करो, जबकि ब्याज तिमाही देय है|
(1) 1100 रु०
(2) 1224 रु०
(3) 1150 रु०
(4) 1550 रु०
Answer—(2) 1224 रु०
Question (4) 2 वर्ष में वार्षिक चक्रवृद्धि ब्याज की दर से यदि कोई धन 500 रु० से 583.2 रु० हो जाता है तो वार्षिक ब्याज की दर है ?
(1). 6 %
(2) 8 %
(3). 7 %
(5) 2 %
Answer—(2) 8 %
Question (5) यदि 4 % वार्षिक ब्याज की दर से किसी धन का 2 वर्ष का साधारण ब्याज 400 रु० है तो उसी धन पर समान अवधि के लिए और समान ब्याज दर पर चक्रवृद्धि ब्याज क्या होगा ?
(1) 410 रूपए
(2) 408 रूपए
(3) 470 रूपए
(4) 520 रूपए
Answer—(2) 408 रूपए