Conversion Calculations MCQ Questions Answers

1. If the price of a particular chemical is $15 per 650 centigrams, then what will be the approximate price of 1560 carats of that chemical?

2. Mary is thrice as old as Lisa and Ian is 60 months older than Mary. If the sum of ages of Mary, Lisa, and Ian is 63 years and 4 months, then what is Mary's age?

3. Andrew takes 3 hour 40 minutes more than Nina in covering a distance of 19.88 miles. If Andrew increases his speed by three times of his original speed then he would take 80 minutes less than Nina. What is Andrew's original speed (approximate)?

4. Complete the following statement: There are ________________ in 1049/72 days.

5. The length(l) and breadth(b) of a cistern is 0.78 kilometers and 699.9 cubits respectively. The level of water in the cistern is up to 106 meters and 35 centimeters. What is the approximate area of the wet surface of the cistern where area of wet surface = 2(bh + lh) + lb?

6. If the principal amount is $8000 and the rate of interest is 4% per annum computed half yearly, then in how many months will the compound interest of $659.46 be generated?

7. Mary borrowed $1800 from Elena at an interest rate of 12% per annum (compound interest) for 36 months. What will be the approximate value of the amount paid by Elena after 36 months if the interest is calculated quarterly?

8. The lengths of three sides of a right angled triangle are 0.09 meters, 120000 microns and 3.15 inches. If a cone is formed by rotating the triangle along the side of 3.15 inches length, then what is the volume of the cone in cubic centimeters?

9. Lisa is 150 months older than Mathew. If the ratio of their respective ages is 11:8 then what will be Mathew's age after 79 months?

10. Mark covers a distance of 22.5 miles in 12 minutes. What is his speed in meters per second?

11.

A car travels from point A to point B. The car stops at two points, X and Z during the journey. The distance from point A to X is 3480 yards, from point X to Z is 786900 decimeters, and from point Z to B is 7.80 miles.

What is the distance from point A to B in kilometers?

12. A wire of 2.8 mm diameter is produced using 154 cubic centimeters of copper. Which of the following is the length of the wire in meters?

13. How many meters is 23.5 decimeters equal to?

14. Nina is running along the boundary of a rectangular ground at a speed of 8.4 km/h. She completes one round in 11 minutes. If the ratio of length and breadth of the ground is 6:5, then what is the area of the ground?

15. Nina travels in a car from point A to B. C is the midpoint between A and B. The car's speed while travelling from A to C is 20 m/s and from C to B is 21600 m/hr. If the total journey was covered in 780 minutes, then what is the distance between point A and B in kilometers?

16. The length of one side of a rectangle is 0.2 miles and the second side is 14 yards. What is the approximate value of the perimeter of the rectangle in centimeters?

17. Given that the speed of car A and B is in the ratio 4:7. If the speed of car A is 320 miles/ hour, then the speed of car B will be ________________ meters/ second.

18. There are _______ inches in 15 meters.

19. After four years, Nina's age will be three times the age of her niece. At present, Nina is 224 months older than her niece. What was Nina's age before 65 months?

20. A group has 7 persons. When a person with 58 kg weight is replaced by another person, the average weight of the group is increased by 10.803 pounds. What is the correct weight of the new person?

21. Mark needs to build a boundary wall on one side of his garden. The length, breadth, and height of the wall should be 100 feet, 49.21 feet, and 63 meters respectively. How many bricks will be required if the length, breadth, and height of each brick is 1200 cm, 1800 mm and 15 decimeters respectively?

22. Nina is 5844 days younger than Paul. In 209 weeks, her age will be half the age of Paul. What is the approximate age of Nina at present?

23. Sonia borrowed $62500 from a bank for 48 months. If the rate of interest per annum is 16% then what is the approximate value of compound interest paid by Sonia at the end of 48 months?

24. Mark invested $5600 in a simple interest scheme for 4 years and 6 months. He lends the money thus obtained to Sam at the rate of 5% (compound interest) for 1 year. The interest is calculated half yearly and the duration of the loan is 1 year. If the amount obtained after one year is $8535.56, then what is the approximate rate of simple interest?

25. In how many weeks will a principal of $4600 amount to $5290 at a simple interest rate of 2.5% per annum.

26. 6 years later Mathew's age will be 438288 hours. If the present ratio of Ian's and Mathew's age is 9:11, then what is the present age of Ian?

27. If the speed of a motorcycle is 179 miles/hour, then how much time (approximately) will it take to cover a distance of 9840 meters?

28. The current age of Elena is four times the age of Nina. After 84 months, the ratio of ages of Elena and Nina will be 5:3. What will be the ratio after 11 years?

29. Daniel borrowed a certain amount of money from a bank at a quarterly rate of 2.5% for 4 years. If the interest paid by him after 4 years is $624 then what is the value of principal amount?

30. 174 miles= ______________ kilometers