A sum of money borrowed and paid back in two annual instalments of ₹ $882$ each allowing $5 \%$ compound interest. The sum (In ₹) borrowed was
$1620$
$1640$
$1680$
$1700$
The least number of completed years in which a sum of money put out at $20 \%$ $C.I.$ will be more than doubled is
The difference between the simple interest and the compound interest (In ₹) on ₹ $600$ for $1$ year at $10 \%$ per annum, reckoned half-yearly is
A certain sum of money invested at compound interest becomes $1.44$ times of itself in $2$ years. If twice this sum were lent at simple interest, in how many years would it double itself?
A bank offers $5 \%$ compound interest calculated on half-yearly basis. A customer deposits ₹ $1600$ each on $1^{st}$ January and $1^{st}$ July of a year. At the end of the year, the amount (In ₹) he would have gained by way of interest is
In what time (In $years$) will ₹ $8,000,$ at $3 \%$ annum, produce the same interest as ₹ $6,000$ does in $5$ years at $4 \%$ simple interest?