Ques:- There is a leak in the bottom of a cistern. When the cisternis thoroughly repaired, it would be filled in 3 ? hours. It now takes half an hour longer. If the cistern is full, howlong will the leak take to empty the cistern?
A. 24 hours
B. 28 hours
C. 21 hours
D. 27 hours
E. None of these
Recent Answer : Added by DK BOSS On 2021-07-17 06:18:17:
Time taken to fill repaired cistern = 12 mins
In 1 min, pipe will fill = 1/12
Time taken to fill cistern with leak = 12 + 18 = 30 mins
In 1 min, it will fill = 1/30
Consider the leak as an outlet pipe, so
1/30 = 1/12 – [ in 1 min how much the outlet pipe leaks ]
= 1/12 – 1/30
= 5/60 – 2/60 = 3/60 = 1/20
Therefore, it will take 20 mins for the leak to empty the cistern
Ques:- A room is 15m long, 4m broad and 3m height. Find the cost of white washing its four walls at 50p per m2Â ?
Recent Answer : Added by Sourabh Singh Rawat On 2021-10-10 19:03:37:
2*3(15+4)=114
114*1/2=57 rs
Ques:- Can you describe a work or school instance in which you messed up?
Ques:- The LCM of two numbers is 2079 and their HCF is 27. If oneof the numbers is 189, find the other number.
A. 248
B. 128
C. 297
D. 336
E. None of these
Recent Answer : Added by Mahek On 2021-09-05 11:26:36:
297
Ques:- If the numbers from 1 to 24, which are divisible by 2 are arranged in descending order, which number will be at the 8th place from the bottom?
A. 18
B. 16
C. 12
D. 10
Recent Answer : Added by Ferro On 2022-11-18 16:02:49:
1 through 24, divisible by 2 in descending order.
That leaves you with:
24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2
8th place FROM the bottom means your answer will be 16.
Ques:- The H.C.F of two numbers is 12 and their difference is 12. The numbers are
A. 94, 106
B. 84, 96
C. 70. 82
D. 66, 78
Recent Answer : Added by Cynthia Birungi Muhumuza On 2022-08-14 16:34:53:
B
Ques:- WHAT IS THE IMPORTANCE OF MS EXCEL & MS- WORD AND WHAT ARE ITS MAIN APPLICATION IN COMPANIES
Ques:- What are your views about the area where you are being appointed as Center Manager?
Ques:- The letters below stand for numbers 0,1,2,3,4,5,6.Decipher them DADCB -EBEG is equal to BFEG
Ques:- Self details
Ques:- Find out the wrong number in the series:
1, 3, 10, 21, 64, 129, 356, 777
A. 356
B. 129
C. 64
D. 10
Recent Answer : Added by narendra On 2022-09-18 09:01:34:
a
Ques:- In a cricket match 2 batsmen were playing. both of them where on 94 last 3 balls were left and 7 runs needed to win. How both of them can attain century without getting out?
Recent Answer : Added by Kavi Arasan On 2022-05-17 08:55:03:
1 ball – 4 runs (1st batter – 94+4=98)
2 ball – 3 runs and one run is short run during running between the wicket (1st batter- 98+3-1 =100)and strike changes for 2nd batter
3 ball – 6 runs ( 2nd batter 94+6=100)
Ques:- Personal Details, Professional Experience
Ques:- the total expense of boarding house are partly fixed and partly variable.the charge is rs 70 per head when there are 25 boarders and rs 60 when there are 50 boarders.find charge per head when there are 100 boarders
Recent Answer : Added by Admin On 2020-05-17 12:05:18:
55
Ques:- A person wants to buy 3 paise and 5 paise stamps costing exactly one rupee. If he buys which of the following number of stamps. he wont able to buy 3 paise stamps
Recent Answer : Added by Admin On 2020-05-17 11:59:23:
9
Ques:- Brief me something about yourself?
Ques:- A positive number when decreased by 2 is equal to 15 times the reciprocal of the number. What is the number ?
Recent Answer : Added by Abhi Chatterjee On 2022-01-08 16:05:35:
Let the number be x.
So x-2 =15/x, or
x^2–2x-15=0, or
(x-5)(x+3)=0
Hence x = 5 or -3.
Check: When x=5, 5–2=3 which is 15/5=3.
When x=-3, -3–2=-5 which is 15/-3=-5.
The number is 5 or -3.
Ques:- Find out the wrong number in the series:
125, 106, 88, 76, 65, 58, 53
A. 65
B. 76
C. 88
D. 106
Recent Answer : Added by Abhay singh On 2022-05-17 08:56:47:
88
Ques:- A person has to cover the fixed distance through his horses. There are five horses in the cart. They ran at the full potential for the 24 hours continuously at constant speed and then two of the horses ran away to some other direction. So he reached the destination 48 hours behind the schedule. If the five horses would have run 50 miles more, then the person would have been only 24 hours late. Find the distance of the destination.
Recent Answer : Added by Admin On 2020-05-17 12:04:22:
150 miles
Ques:- The numbers 1, 3, 5, ….., 25 are multiplied together. The number of zeros at the right end of the product is
A. Four
B. Three
C. Two
D. Zero
Recent Answer : Added by sandali On 2022-05-17 09:09:42:
0
Ques:- How did you know about this vacancy?
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Ques:- If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that code?
Recent Answer : Added by PRADHUM VIJAYVARGIYA On 2023-05-12 12:09:20:
CPNCBZ
Ques:- Two numbers are in the ratio of 5:7. If 25 be subtracted from each, they are in the ratio of 35:59. Find the numbers?
Recent Answer : Added by Tirth Shah On 2022-03-09 16:29:54:
x/y =5/7…………………………..(1)
(x-25)/(y-25)=35/39
59x=35y+600
dividing b.t.s by y and substituting (x/y) value from equation (1)
y=84
Now, substitue y value in equation (1)
x = 60
Ques:- The sum of the present ages of two persons A and B is 60. If the age of A is twice that of B, find the sum of their ages 5 years hence?
Recent Answer : Added by OLUCHI Perpetual Ndimkaoha On 2022-09-22 16:40:12:
24
Ques:- Find out the wrong number in the series:
7, 8, 18, 57, 228, 1165, 6996
A. 228
B. 57
C. 18
D. 8
Recent Answer : Added by Vishwanath On 2021-10-07 15:41:56:
Ans : 228
7
(7*1)+1=8
(8*2)+2=18
(18*3)+3=57
(57*4)+4=232 [ given 228 ] odd
(232*5)+5=1165
(1165*6)+6=6996
Ques:- A train 280 m long, running with a speed of 63 km/hr will pass a tree in?
Recent Answer : Added by Jay On 2022-08-14 16:45:18:
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