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- Question
A cistern has a leak which would empty the cistern in 20 minutes. A tap is turned on which admits 4 liters a minute into the cistern, and it is emptied in 24 minutes. How many liters does the cistern hold ?
Options- A. 360 lit
- B. 480 lit
- C. 320 lit
- D. 420 lit
- Correct Answer
- 480 lit
Explanation1/k - 1/20 = -1/24
k = 120
120 x 4 = 480
Therefore, the capacity of the cistern is 480 liters.
- 1. In the following question, select the odd letter from the given alternatives.
Options- A. U
- B. S
- C. Q
- D. G Discuss
- 2. Select the odd word/letters/number/number pair from the given alternatives.
Options- A. JPM
- B. DJG
- C. BHE
- D. SDA Discuss
- 3. List price of TV is Rs. 2300 and discount series found to be 25% and 10%. Then the selling price of TV is
Options- A. Rs.1255.5
- B. Rs.1525.5
- C. Rs.1552.5
- D. Rs.1555.2 Discuss
- 4. Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is :
Options- A. 12
- B. 137
- C. 14
- D. 15 Discuss
- 5. Find out the wrong term in the given series of numbers ? 6, 15, 35, 77, 165, 221
Options- A. 35
- B. 165
- C. 221
- D. 77 Discuss
- 6. Select the odd word/letters/number/number pair from the given alternatives.
Options- A. 156
- B. 200
- C. 182
- D. 240 Discuss
- 7. The difference between the two numbers is 1365. When the larger number is divided by the smaller one, the quotient is 6 and the remainder is 15. The smaller number is?
Options- A. 280
- B. 270
- C. 370
- D. 170 Discuss
- 8. Find out the wrong number in the following series: 5, 15, 30, 80, 180, 540, 1080
Options- A. 540
- B. 180
- C. 30
- D. 80 Discuss
- 9. Select the odd word/letters/number/number pair from the given alternatives.
Options- A. 462
- B. 297
- C. 674
- D. 891 Discuss
- 10. If the selling price of an item is Rs 1000 after getting a discount of 20%, then what was the marked price (in Rs)?
Options- A. 1200
- B. 1250
- C. 800
- D. 1400 Discuss
More questions
Correct Answer: U
Correct Answer: SDA
Correct Answer: Rs.1552.5
Correct Answer: 15
Explanation:
Let the three integers be x, x + 2 and x + 4. Then, 3x = 2 (x + 4) + 3 <=> x = 11.
Third integer = x + 4 = 15.
Correct Answer: 165
Explanation:
The given series follow the rule that :
Multiplying consecutive prime numbers
2,3,5,7,11,13,17,19....
2x3 = 6
3x5 = 15
5x7 = 35
7x11 = 77
11x13 = 143
13x17 = 221
So, the wrong term is 165.
Correct Answer: 200
Correct Answer: 270
Explanation:
Let the numbers be x and 1365+x
Then 1365+x = 6x+15
=> x = 270
Correct Answer: 80
Explanation:
There should be 90 instead of 80
so we can have a series
5, 5x3, 15x2, 30x3, 90x2, 180x3, 540x2 and 1080x3 and so on...
Correct Answer: 674
Correct Answer: 1250
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