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- Question
Meghana alone would take 32 hours more to complete a job than both Meghana and Ganesh together. If Ganesh worked alone, he took 12 1/2 hours more to complete it than both Meghana and Ganesh worked together. What time would they take if both Meghana and Ganesh worked together?
Options- A. 20 hrs
- B. 18 hrs
- C. 22 hrs
- D. 20.5 hrs
- Correct Answer
- 20 hrs
ExplanationTime taken by both Meghana and Ganesh to work together is given by =
Where
Therefore, time took by both to work together =
- 1. L.C.M of 3/4, 6/7, 9/8 is?
Options- A. 18
- B. 3
- C. 3/56
- D. 9/28 Discuss
- 2. A and B can do a piece of work in 8 days, B and C can do the same work in 12 days and A and C complete it in 8 days. In how many days A, B and C can complete the whole work,working together?
Options- A. 4
- B. 6
- C. 12
- D. 9 Discuss
- 3. A and B can do a piece of work in 6 and 12 days, respectively. They (both) will complete the work in how many days?
Options- A. 9 days
- B. 18 days
- C. 6 days
- D. 4 days Discuss
- 4. ? 64009 is equal to :
Options- A. 352
- B. 523
- C. 253
- D. 532 Discuss
- 5. The mean temperature of Monday to Wednesday was 37°C and of Tuesday to Thursday was 34°C. If the temperature on Thursday was 4/5 that of Monday, the temperature of Thursday was
Options- A. 35.5°C
- B. 34°C
- C. 36.5°C
- D. 36°C Discuss
- 6. 331, 482, 551, 263, 383, 242, 111?
Options- A. 263
- B. 383
- C. 242
- D. 111 Discuss
- 7. If the price of petrol is increased by 20% and subsequently by 40%. If the original price was Rs25 per litre then what is then the final price per litre?
Options- A. 42
- B. 45
- C. 48
- D. 40 Discuss
- 8. Let A = {1, 2, {3, 4}, 5}. Which of the following statements are true?
Options- A. {3, 4} ? A;
- B. {3, 4} ? A;
- C. {{3, 4}} ? A;
- D. {1, 3, 5} ? A. Discuss
- 9. Roshan bought 5 pants at ?25 each, 10 shirts at ? 50 each and 15 ties at ? 35 each. Find the average price of all the articles.
Options- A. ? 38.33
- B. ? 45
- C. ? 60
- D. ? 45.33 Discuss
- 10. 165, 195, 255, 285, .... 435
Options- A. 340
- B. 341
- C. 345
- D. 401 Discuss
More questions
Correct Answer: 18
Explanation:
L. C . M = ( L.C.M of 3, 6, 9 ) / (H.C.F of 4, 7, 8)
= 18 / 1
= 18
Correct Answer: 6
Explanation:
Efficiency of (A + B) = 12.5%
Efficiency of (B + C) = 8.33%
Efficiency of (C + A) = 12.5%
? Efficiency of [(A + B) + (B + C) + (C + A)] = 33.33%
? Efficiency of (A + B + C) = 16.66%
? No. of days Required by A, B and C together = 100/16.66 = 6 days
Correct Answer: 4 days
Explanation:
A's 1 day's work = 1/6
B's 1 day's work = 1/12
(A + B)'s 1 day's work = 1/6 + 1/12
= (2 + 1)/12 = 3/12 = 1/4
Hence, both will complete the work in 4 days.
Correct Answer: 253
Explanation:
NA
Correct Answer: 36°C
Explanation:
Temperature of (Mon + Tue + Wed) = 37 x 3 = 11°C
Temperature of (Tue + Wed + Thu) = 34 x 3 = 102°C
Temperature of (Mon - Thu) = 111°C - 102°C = 9°C
Temperature of [Mon - 4/5(Mon] = 9
Temperature of Monday = 9 x 5 = 45°C
? Temperature of Thursday = 45 x 4/5 = 36°C
Correct Answer: 383
Explanation:
In each number except 383, the product of first and third digit is the middle one.
Correct Answer: 42
Explanation:
Final Price = 25 x (1 + 20/100) x (1 + 40/100)
=Rs.25 x 1.2 x 1.4
= Rs. 42
Correct Answer: {3, 4} ? A;
Explanation:
NA
Correct Answer: ? 38.33
Explanation:
Here, n1 = 5, n2 = 10, n3 = 15, a1 = 25, a2 = 50, a3 = 35
According to the formula,
Average price = (n1a1 + n2a2 + n3a3) / (n1 + n2 + n3)
= (5 x 25 + 10 x 50 + 15 x 35) / (5 + 10 + 15)
= (25 + 100 + 105) / (1 + 2 + 3)
= 230/6
= ? 38.33
Correct Answer: 345
Explanation:
Series Pattern
(15 x 11), (15 x 13), (15 x 17), (15 x 19), (15 x 23), (15 x 29)
? Missing term = (15 x 23) = 345
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