Latest TCS Aptitude Question SOLUTION: 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:

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(#M40153717) TCS Numerical Ability question compound interest Keep an EYE

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:

Asked In TCS j.lavanya (8 years ago)

Unsolved Read Solution (8)

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Read Solution (8) :

subram  (8 years ago)

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

Is this solution Helpfull? Yes (4) | No   

Saunak Das  (8 years ago)

From question we have
P(1+r/100)^n=882.
P=882*(20/21)^2
P=882*400/441. So P=800.

Is this solution Helpfull? Yes (3) | No (4)  

sunil yaragoppa  (8 years ago)

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

Is this solution Helpfull? Yes (3) | No (3)  

Amani Thoutam  (8 years ago)

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

Is this solution Helpfull? Yes (1) | No   

kailash bajya  (8 years ago)

Actually it include two annul installment..

So ..
2*882=p(1+5÷100)^2
So p is 1600.

Is this solution Helpfull? Yes | No (2)  

shambhu  (8 years ago)

please sumone tell the correct solution for this .....

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ANKIT PATEL  (8 years ago)

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

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jeevadhasan  (7 years ago)

1640 is write answer

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