NTPC CBT- 2 MOST PROBABLE - CI AND SI QUIZ-14

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Question 1:

A sum of Rs. 13,500 amounts to Rs.16,335 at $10 \%$ p.a. interest being compounded yearly in a certain time. The simple interest (in Rs.) on the same sum for the same time and same rate is:

Question 2:

The simple interest on a certain sum of money for 4 years at the rate of $12.5 \%$ per annum is $33 \frac{1}{3} \%$ of the compound interest on RS. 25000 for 2 years at the rate of $10 \%$ per annum, interest yearly. What is the sum placed on simple interest?

Question 3:

An amount invested at simple interest gives Rs. 2000 interest at rate of $10 \%$ in 4 years. What is the principal $(\operatorname{in} Rs.)$ ?

Question 4:

The difference between simple and compound interests compounded anually on a certain sum for 2 years at $25 \%$ per annum is Rs.500. The sum is:

Question 5:

Rs. 480 is invested at simple interest. It becomes Rs. 520 after 20 months. What is the interest rate per annum?

Question 6:

In 8 years, a sum of money earns an interest equal to twice the sum invested at simple interest. In how many years the sum of money becomes $900 \%$ of itself at the same rate of simple interest?

Question 7:

A sum of Rs. 4700 is divided into two parts such that the simple interest on the first part for $5 \frac{1}{4}$ years at $9 \frac{1}{3} \%$ p.a. is double the simple interest on the second part for $3 \frac{3}{5}$ years at $6.25 \%$ p.a. What is the difference between the two parts?

Question 8:

A certain sum amount to Rs. 12800 in 2 years at $16 \frac{2}{3} \%$ p.a. simple interest. The same sum will amount to what in $1 \frac{1}{2}$ years at $300 \%$ of previous rate, if interest is compounded half yearly.

Question 9:

Amit invested his savings in the cryptocurrency market. The value of his investments increased by 48% and 36% respectively. If the value of his investments after 2 years became Rs.36,482 then how much had he invested in (Rs.).

Question 10:

If the compound interest received on a certain amount in the second year is 2520, what will be the compound interest (in Rs.) for the fourth year on the same amount at $16 \frac{2}{3} \%$ rate of interest.