Discussion
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- Question
Speeds of a boat along the current and against the current are 14 km/hr and 7 km/hr respectively. What is the speed of boat (in km/hr) in still water?
Options- A. 3.5
- B. 7.5
- C. 10.5
- D. 9.5
- Correct Answer
- 10.5
- 1. If there is a total of 104 weekly instalments and a thirddeposit, find the interest charged
Options- A. 237.55
- B. 337
- C. 443
- D. 334 Discuss
- 2. What is the value of cos (90 ? B) sin (C ? A) + sin (90 + A) cos (B + C) ? sin (90 ? C) cos (A + B)?
Options- A. 1
- B. sin ( A + B ? C)
- C. cos ( B + C ? A)
- D. 0 Discuss
- 3. If there is a total of 104 weekly instalments and a third deposit, find the interest rate
Options- A. 2.82
- B. 3.82
- C. 4.82
- D. 5.82 Discuss
- 4. A tower stands on the top of a building which is 40 metres high. The angle of depression of a point situated on the ground from the top and bottom of the tower are found to be 60 and 45 deg respectively. What is the height (in metres) of tower?
Options- A. 20?3
- B. 30(?3 + 1)
- C. 40(?3 ? 1)
- D. 50(?3 ? 1) Discuss
- 5. If there is a total of 104 weekly instalments and a third deposit, find: the total cost of the computer
Options- A. 3932.55
- B. 4932
- C. 5932
- D. 6932 Discuss
- 6. What is the value of sec2? + 1sec2? - 1 x 12cot? - tan? ?
Options- A. 0
- B. 1
- C. cosec ?
- D. sec ? Discuss
- 7. Determine the exact and ordinary simple interest on a 90-day loan of $8000 at 812 %
Options- A. 150$
- B. $160
- C. $170
- D. $180 Discuss
- 8. What is the value of the expression a3 - 5 + 2816a , when a = 2?
Options- A. 2
- B. 5
- C. 7
- D. 8 Discuss
- 9. You deposit $600 into a 6 month certificate of deposit. After 6 months the balance is $618. Find the simple annual interest rate.
Options- A. 5%
- B. 4%
- C. 6%
- D. 7% Discuss
- 10. Sumit and Amit undertook a work for Rs 7200. Sumit alone can do the work in 5 days and Amit alone can do the work in 4 days. If they work together,then what will be the difference (in Rs.) in the amount they receive?
Options- A. 800
- B. 1600
- C. 1200
- D. 1400 Discuss
More questions
Correct Answer: 237.55
Explanation:
Cash price = $3695
Deposit =1/3 of $3695 = $1231.67
Loan amount = $3695.00 ? $1231.67 = $2463.33
Total cost of loan = $25.97 × 104= $2700.88
Interest charged = total amount ? loan
I = A ? P
= 2700.88 ? 2463.33
= 237.55
Correct Answer: 0
Correct Answer: 4.82
Explanation:
R = (100 x I)/( P x T)
Correct Answer: 40(?3 ? 1)
Correct Answer: 3932.55
Explanation:
Total cost = deposit + loan + interest
= 1231.67 + 2463.33 + 237.55
= $3932.55
Correct Answer: 1
Correct Answer: $170
Explanation:
Exact interest, I= prt = $8000 × 0.085 × 90/365 = 167.67
Ordinary Interest, I= Prt = $8000 x 0.085 x 90/360 = 170
Correct Answer: 7
Correct Answer: 6%
Explanation:
I=prt
Correct Answer: 800
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