TCS
Company
Numerical Ability
Simple & Compound Interest
A sum of money is borrowed and paid back in two annual instalments of Rs. 882 each allowing 5% C.I. The sum borrowed was:
Read Solution (Total 8)
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- it is an compound interest
in 1st year it is 882
in 2nd year 882+5%0f 882
so in first year is 882
in 2nd year is 926.1
total in 2 year is 1808.1
so it is an amount now if u substitute in c.i formula
1808.1=p(105/100)2
p=1640
so answer is 1640 - 9 years agoHelpfull: Yes(4) No(0)
- From question we have
P(1+r/100)^n=882.
P=882*(20/21)^2
P=882*400/441. So P=800. - 9 years agoHelpfull: Yes(3) No(4)
- The sum borrowed
= Present Worth of Rs.882 due 1 year hence + Present Worth of Rs.882 due 2 year hence
=882(1+5100 ) 1 +882(1+5100 ) 2 =882(105100 ) +882(105100 ) 2 =882(2120 ) +882(2120 ) 2 =882×2021 +882×20×2021×21 =42×20+42×20×2021 =840+2×20×20=840+800=1640
i.e., The sum borrowed = Rs.1640 - 9 years agoHelpfull: Yes(3) No(3)
- let sum borrowed be x
instalment for every year is 882
in one year sum=x(1+5/100)=1.05x
in second year sum=1.05x(1.05)
1.05x+1.05x(1.05)=(882*2)=1764
x(1.05)(1+1.05)=1764
x=819.5
- 9 years agoHelpfull: Yes(1) No(0)
- Actually it include two annul installment..
So ..
2*882=p(1+5÷100)^2
So p is 1600. - 9 years agoHelpfull: Yes(0) No(2)
- please sumone tell the correct solution for this .....
- 9 years agoHelpfull: Yes(0) No(0)
- for 2 consecutive instalments with 5% per annum they recieve total 882+882=1764
and effective interest in these two years is (x+y+xy/100)
at here x=y=5
then (x+y+xy/100)=10.25
110.25 * borrowed cost =1764
B.C= (1764/110.25)*100=1600
- 9 years agoHelpfull: Yes(0) No(0)
- 1640 is write answer
- 8 years agoHelpfull: Yes(0) No(0)
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