Interest

Refer to the information given below and answer the following question.
Lala Ramdayal Upadhyay deposited a certain sum of money in the Bank of Cozyland in the beginning of the year $1990$ on S.I. @ $10$% p.a. After one year, he withdrew half of the new amount. At the end of $1991$, he again withdrew half of the new amount. After one year, he withdrew half the new amount. The remaining money was kept in the bank and he finally withdrew the entire sum of Rs. $18300$ at the end of $1993$ and closed the account.

Had Lala Ramdayal not disturbed his money for the entire period of deposit, then at the end of $1993$, he would have received (approx.)

Rupees $(x + 200)$ when invested at $15\%$p.a. for $8$ years gives a simple interest of $₹(\mathrm{x} + 680)$. Find the amount received when $₹(x +1000)$ is invested at $50\%$ p.a. compound interest for two years,compounded annually?

The simple interest received after $6$ years on $₹(\mathrm{x} + 600)$ at the rate of $25\%$ p.a. is $₹(3x - 1800)$. The amount received on$₹2\mathrm{x}$ when invested at $50\%$ p.a. compound interest compounded annually for $2$ years can be

Ram invested $₹\text{'}\mathrm{x}\text{'}$' in a scheme offering $15\%$ p.a. simple interest for three years while Shyam invested the same amount in another scheme offering $10\%$ p.a. compound interest for three years, compounded annually. Find the value of $\text{'}x\text{'}$ if the difference between the interests earned by them after three years is $₹1428$.

Priya invested $₹16,000$ in the scheme offering $12.5\%$ pa compound interest for $2$ years compounded annually. Riya invested $₹10,000$ in a scheme offering $10\%$ pa compound interest for $2$ years compounded annually. Find the difference between the interests earned by Priya and Riya

The simple interest earned on $₹14,400$ in $5$ years is $₹3,600$ when invested at some rate of interest. What will be the compound interest earned on $₹14,000$ when invested for $2$ years at a rate double than in case of simple interest?

The simple interest earned on $₹14,400$ in $5$years is $₹3,600$ when invested at some rate of interest. What will be the compound interest earned on $₹14,000$ when invested for $2$ years at a rate double than in case of simple interest?

Rahul invested a certain amount in scheme A which offers simple interest and the amount becomes three-two of itself after $10$ years. He also invested $₹12,000$ in scheme B which offers compound interest, and got $₹1,996.8$ after $2$ years. What is the difference between the rate of interest in scheme A and B respectively?

A lends a sum of $₹48,000$ partially to B and C at the rate of simple interest of $12\%$ and 8% respectively. The difference between the interests received after $4$ years is $₹640$. Find the amount A lent to $\frac{C}{A}$

A sum of money becomes $₹10,560$ in $8$ years at $15\%$ rate of simple interest. If the same sum is invested in a compound interest scheme at the rate of $10\%$ per annum for $2$years, then what is the compound interest received by after $2$ years?

$₹6000$, when invested at a certain rate at SI for $2$ years, it fetches $₹1200$. If the same sum is invested at the same rate for a year compounded half–yearly, then find compound interest

A sum of money becomes $₹1815$ at $7\%$ SI after $3$ years. Same sum of money becomes $₹2235$ at same interest after $7$ years. Find the principal amount.

A man invests $₹124000$ for $9$ years at $5\%$ SI. Income tax at the rate of $19\%$ is deducted from interest earned at the end of every year. Find the amount at the end of the $9^{th}$ year?

What amount would $Rs.2560$ fetch if it is lent at $8\%$ SI for $15$ years?

SBI lent $Rs.10,000$ to Deepak $@7\%$ SI for $10$ years. Meanwhile, the government implemented a scheme due to which interest rate reduced by $2\%$. By this Deepak paid $Rs.16,000$ in total. Then after how many years after Deepak took the loan, the government introduced the scheme?

Ajay lent $Rs.8800$ to be divided between his two sons aged $11$ years and $13$ years such that both of them would get an equal amount when lent at the rate of $10\%$ SI when they attain $18$ years of age. What is the share of elder in $Rs.8800$?

Cost of a Mobile $Rs.8000$. Sudha bought Mobile in EMI. She paid a Down payment of $Rs.2000$ and paid rest in $6$ equal installments of $Rs.1020$ for next $6$ months. Then what is the SI rate charged?

If the annual rate of simple interest increases from $8\%$ to $13\%$, a man’s yearly income increases by $Rs.4800$. His principal (in $Rs.$) is:

Kailash borrowed some money at the rate of $5\% p.a$. for the first three years, $8\% p.a$. for the next five years and $11\% p.a$. for the period beyond eight years. If the total interest paid by him at the end of eleven years is $Rs.8800$, how much money did he borrow?

If simple interest on a certain sum of money for $6$ years at $5\%$ per annum is same as the simple interest on $Rs.650$ for $9$ years at the rate of $12\%$ per annum then the sum of money is