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- Question
- If price of m articles is ? n, then what is the price of 5 articles?
Options- A. ? 5n/m
- B. ? mn/5
- C. ?m/n
- D. ? 5m/n
- Correct Answer
- ? 5n/m
Explanation? Price of m articles = ? n
? Price of 1 article = ? n/m
? Price of 5 articles = ? 5n/m - 1. If in a hostel 45 days, food is available food is available for 50 students, for how many days will this food be sufficient for 75 students?
Options- A. 25 days
- B. 28 days
- C. 30 days
- D. 40 days Discuss
- 2. Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
Options- A. 648
- B. 1800
- C. 1700
- D. 1080 Discuss
- 3. A flagstaff 17.5 meters high casts a shadow of length 40.25 meters. What will be the height of a building, which casts a shadow of length 28.75 meters under similar conditions?
Options- A. 12.5 m
- B. 11.5 m
- C. 14.8
- D. 12.9 Discuss
- 4. If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web in how many days?
Options- A. 1
- B. 8
- C. 7
- D. None Discuss
- 5. A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?
Options- A. 75
- B. 92
- C. 120
- D. 110 Discuss
- 6. 12 men can do a piece of work in 24 days. How many days are needed to complete the work, if 8 men are engaged in the same work?
Options- A. 28
- B. 36
- C. 48
- D. 52 Discuss
- 7. Maganlal, a worker, makes an article in every 2/3h. If he works for 7 1/ 2h, then how many articles will he make?
Options- A. 111/4
- B. 111/3
- C. 112/6
- D. 112/5 Discuss
- 8. Shantanu completes 5/8 of a job in 20 days. At this rate, how many more days will he take to finish the job?
Options- A. 6 days
- B. 18 days
- C. 5 days
- D. 12 days Discuss
- 9. 20 men can build 56 m long wall in 6 days. What length of a similar wall can be built by 70 men in 3 days?
Options- A. 100 m
- B. 98 m
- C. 48 m
- D. 85 m Discuss
- 10. 22 men can complete a job in 16 days. In how many days, will 32 men complete that job?
Options- A. 14
- B. 12
- C. 16
- D. None of these Discuss
Unitary Method problems
Search Results
Correct Answer: 30 days
Explanation:
For 50 students, food is sufficient for 45 days
? For 1 student, food is sufficient for 45 x 50 days
and for 75 students, food is sufficient for (45 x 50)/75 days. i,e., for 30 days.
Correct Answer: 1800
Explanation:
Since 6 identical machines in 1 minute can produce a total of 270 bottles.
? 1 identical machines in 1 minute can produce a total of 270 / 6 bottles.
? 10 identical machines in 1 minute can produce a total of 270 x 10 / 6 bottles.
? 10 identical machines in 4 minute can produce a total of 270 x 10 x 4 / 6 bottles.
? 10 identical machines in 4 minute can produce a total of 45 x 10 x 4 bottles.
? 10 identical machines in 4 minute can produce a total of 1800 bottles.
Correct Answer: 12.5 m
Explanation:
According to question,
A shadow of length 40.25 meters is build for a height of 17.5 meters.
A shadow of length 1 meters is build for a height of 17.5 /40.25 meters.
A shadow of length 28.75 meters is build for a height of 17.5 x 28.75 /40.25 meters.
A shadow of length 28.75 meters is build for a height of 17.5 x 2875 /4025 meters.
A shadow of length 28.75 meters is build for a height of 17.5 x 575 /805 meters.
A shadow of length 28.75 meters is build for a height of 17.5 x 115/161 meters.
A shadow of length 28.75 meters is build for a height of 12.5 meters.
Correct Answer: 7
Explanation:
Correct Answer: 110
Explanation:
Given in the question,
Let k be the men there originally .
Work done by y men can finish = 100 days
If there were 10 men less, it would take more days finish the work in 10 days
i.e. ( k - 10 ) = 110
According to question ,
k × 100 = ( k - 10 ) × 110
? 100k = 110k - 1100 ? 10k = 1100 ? k = 110
Therefore , 110 men were there originally .
Correct Answer: 36
Explanation:
Let the required number of days be N.
Let men, More days (indirect proportion)
8 : 12 : : 24 : N
? N = (12 x 24)/8 = 36 days
Correct Answer: 111/4
Explanation:
? In 2/3h, 1 article is made.
? In 1h, 3/2 article are made.
? In 71/2 = 15/2h, 3/2 x 15/2 = 45/4 article are made.
? Required articles = 45/4 = 112/4
Correct Answer: 12 days
Explanation:
Let the required number of days be N.
Remaining work = 1 - 5/8 = 3/8
Less work, Less days (Direct proportion)
5/8 : 3/8 : : 20 : N
? N = (3/8) x 20 x 8/5
? N = 12 days
Correct Answer: 98 m
Explanation:
Let the required length be L m.
More men, More length (Direct proportion)
Less days, Less length (Direct proportion)
Men 20 : 70
Days 6 : 3
? (20 x 6 x L) = (70 x 3 x 56)
? L = (70 x 3 x 56) / (20 x 6) = 98 m
Correct Answer: None of these
Explanation:
? 22 men do the work in 16 days.
? 1 man will do the work in 16 x 22 days.
? 32 men will do the job in = (16 x 22)/32 days
? Required number of days = (16 x 22)/32 = 11 days
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