Topic
Q:
1. एक व्यापारी अपने माल पर क्रय मूल्य से \( 20 \% \) अधिक मूल्य अंकित करत
है और \( 10 \% \) को छूट देता है। वह एक दोषपूर्ण तराजू का उपयोग करत
है, जो 1 किग्रा० वजन के बजाय 800 ग्राम मापता है। उसका शुद्ध प्रतिश
लाभ क्या होंगा?
\( \begin{array}{llll}\text { (A) } 35 \% & \text { (B1) } 25 \% & \text { (C) } 20 \% & \text { (D) } 15 \%\end{array} \)
Q:
he had to Pay.
Solve \( P=300 . T=31 / 2 \) years. \( A=410.25 \)
I. \( A-P \)
\( 410 \cdot 25-300 \)
Q:
During a sale at Samsung, all items were marked 20\% off. If a Samsung Galaxy
Z is R28 999,00 after discount, calculate the original price of the phone.
Q:
Suppose the Fed purchases \( \$ 100 \) million of U.S, securities from security dealers. If the reserve requircment is 20 pereent, the currency holdings of the public are unchanged, and banks have zero exee
reserves both before and after the transaction, the total impact on the money supply will be a:
\( \$ 100 \) million increase in the money supply.
\( \$ 200 \) million increase in the money supply.
\( \$ 100 \) million decreasc in the moncy supply.
\( \$ 500 \) million increase in the money supply.
Q:
Find the balance after 6 years if \( \$ 24000 \) is
invested at \( 12 \% \) p.a. compounded monthly.
(nearest dollar)
Q:
A doctor is planning to buy an X-ray machine tor his hospital. He has two
options. He can either purchase it by making a cash payment of Rs. 5 lakhs or
Rs. \( 6,15,000 \) are to be paid in six equal annual instalments. Which option do
you suggest to the doctor assuming the rate of return is \( 12 \% \) ?
Q:
14. Using the cAs calculate the following. Write down the command you used on the CAS.
a) The compound interest rate when \( \$ 6200 \) is invested for 5 years and the \( \$ 7500 \) is the final amount.
b) The length (in years) of a loan, if \( \$ 12,400 \) is borrowed at a rate of \( 4.5 \% \). In total, \( \$ 16,350 \) was paid to the bank.
b) The initial amount \( t \) invested, if there is a gain of \( \$ 1200 \) in compound interest at a rate of \( 6.8 \% \) for 8 years.
Q:
\( 19004.6-16000-3009.6 \)
Using the cas calculate the following. Write down the command you used on the cas.
he compound interest rate when \( \$ 6200 \) is invested for 5 years and the \( \$ 7500 \) is the final amount.
Q:
Daniela is to invest \( \$ 16000 \) for 2 years at \( 9 \% \) p.a. with interest compounded annually. Calculate:
a. the value of the investment
b. the amount of interest earned.
Q:
12. Craig Invested money at a rate of \( 3.8 \% \) for 18 months. in that time, he earnt \( \$ 171 \) in simple interest.
How much money did Craig initially invest?
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