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- Question
Which of the following fraction is the largest?
Options- A. 7/12
- B. 9/16
- C. 13/20
- D. 32/80
- Correct Answer
- 7/12
ExplanationHere to say which fraction is greater from the given options, the fraction with greater numerator with same denominator or smaller denominator with same numerator.
To find the greater fraction, among the given options, make the denominators same for the options by finding the LCM of all the denominators.
7/12, 9/16, 13/20, 32/80
Now, LCM of 12, 16, 20, 80 = 240.
Then,
140/240, 135/240, 156/240, 96/240
Here
Hence, largest fraction = 13/20.
- 1. A sum of money lent at compound interest for 2 yr at 20 % pa would fetch ? 964 more, if the interest was payable half-yearly than if it was payable annually. What is the sum?
Options- A. ? 40000
- B. ? 60000
- C. ? 90000
- D. ? 500000 Discuss
- 2. A can complete a piece of work in 12 days and B is 60% more efficient than A. In how many days B will complete the same work ?
Options- A. 8.7 hrs
- B. 5.2 hrs
- C. 5 hrs
- D. 7.5 hrs Discuss
- 3. Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. The ratio between the capacity of a man and a woman is
Options- A. 3:4
- B. 4:3
- C. 5:3
- D. 5:7 Discuss
- 4. A can do a piece of work in 15 days and B can do it in 16 days and C can do it 24 days. They started the work together and A leaves after 3 days and B leaves after 4 days from the beginning. How long will work lost ?
Options- A. 10 2/3 days
- B. 13 1/5 days
- C. 12 2/3 days
- D. 11 5/7 days Discuss
- 5. It takes one minute to fill 2/7 th of a vessel. What is the time taken in minutes to fill the whole of the vessel ?
Options- A. 1/7 min
- B. 7/2 min
- C. 5/7 min
- D. 7/5 min Discuss
- 6. A can paint a house in 42 days and B can do it in 21 days. Along with C, they can finish the job in 7 days only.C alone can do the painting job in how many days, ?
Options- A. 9
- B. 12
- C. 14
- D. 15 Discuss
- 7. M, N and O can complete the work in 18, 36 and 54 days respectively. M started the work and worked for 8 days, then N and O joined him and they all worked together for some days. M left the job one day before completion of work. For how many days they all worked together?
Options- A. 4
- B. 5
- C. 3
- D. 6 Discuss
- 8. 70000 a year is how much an hour?
Options- A. 80
- B. 8
- C. 0.8
- D. 0.08 Discuss
- 9. 18 men or 36 boys working 6 hours a day can plough a field in 24 days. In how many days will 24 men and 24 boys working 9 hours a day plough the same field ?
Options- A. 9
- B. 10
- C. 6
- D. 8 Discuss
- 10. A and B can complete a task in 1.5 days. However, A had to leave a few days before the task wascompleted and hence it took 2 days in all to complete the task. If A alone could complete the work in2.625 days, how many days before the work getting over did A leave?
Options- A. 1.125
- B. 0.625
- C. 0.375
- D. 0.875 Discuss
More questions
Correct Answer: ? 40000
Explanation:
Let the sum be ? P .
Then, CI when compounded half - yearly = [P x (1 + 10/100)4 - P] = 4641P/10000
CI when compounded annually = [ P x (1 + 20/100)2 - P] = 11P/25
According to the question, 4641P/10000 - 11P/25 = 964
? [(4641 - 4400)/10000] x P = 964
? P = (964 x 10000)/241
= ? 40000
Correct Answer: 7.5 hrs
Explanation:
Ratio of times taken by A and B = 160 : 100
A can do the work in 12 days
Let B can do the work in "D" days
=> 160:100 = 12 : D
=> D = 12 x 100/160 = 7.5 hrs
Correct Answer: 4:3
Correct Answer: 13 1/5 days
Explanation:
3/15 + 4/16 + x/24 = 1
Correct Answer: 7/2 min
Explanation:
Time taken to fill 2/7 = 1
Then to fill full 1 = ?
? = 1/(2/7) = 7/2 minutes.
Correct Answer: 14
Correct Answer: 5
Explanation:
Let M, N and O worked together for x days.
From the given data,
M alone worked for 8 days
M,N,O worked for x days
N, O worked for 1 day
But given that
M alone can complete the work in 18 days
N alone can complete the work in 36 days
O alone can complete the work in 54 days
The total work can be the LCM of 18, 6, 54 = 108 units
M's 1 day work = 108/18 = 6 units
N's 1 day work = 108/36 = 3 units
O's 1 day work = 108/54 = 2 units
Now, the equation is
8 x 6 + 11x + 5 x 1 = 108
48 + 11x + 5 = 108
11x = 103 - 48
11x = 55
x = 5 days.
Hence, all M,N and O together worked for 5 days.
Correct Answer: 8
Explanation:
Given for year = 70000
=> 365 days = 70000
=> 365 x 24 hours = 70000
=> 1 hour = ?
70000/365x24 = 7.990 = 8
Correct Answer: 8
Correct Answer: 0.875
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