At what time after 4.00 p.m. is the minutes hand of a clock
exactly aligned with the hour hand?
- 11 Answers
- 57668 Views
- HP, Instant Systems, Student, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / guest
4:21:49.5
Assume that X minutes after 4.00 PM minute hand exactly
aligns with and hour hand.
For every minute, minute hand travels 6 degrees.
Hence, for X minutes it will travel 6 * X degrees.
For every minute, hour hand travels 1/2 degrees.
Hence, for X minutes it will travel X/2 degrees.
At 4.00 PM, the angle between minute hand and hour hand is
120 degrees. Also, after X minutes, minute hand and hour
hand are exactly aligned. So the angle with respect to 12
i.e. Vertical Plane will be same. Therefore,
6 * X = 120 + X/2
12 * X = 240 + X
11 * X = 240
X = 21.8182
X = 21 minutes 49.5 seconds
Hence, at 4:21:49.5 minute hand is exactly aligned with the
hour hand.
| Is This Answer Correct ? | 137 Yes | 8 No |
Answer / akash pandey
We know that minute hand cover 55 minute unit over hour hand in 1 hour.
And at 4 p.m minute hand is 20 minute unit back to hour hand hence it have to covers 20 minute unit then-
55 minute unit covers in = 60 min
then 20 minute unit covers in = (60/55)*20
= 21.8 min
= 21 min 48 sec
=> Therefore at 4 hr:21 min:48 sec pm both hands are overlapped.
| Is This Answer Correct ? | 5 Yes | 7 No |
Answer / mak123
It will be aligned at
4.20
5.25
6.30
7.35
8.40
9.45
10.50
11.55
12.00
| Is This Answer Correct ? | 6 Yes | 24 No |
On evey Sunday Amar, Akbar and Anthony lunch together at Preetam-Da-Dhaba where they order lassi based on following facts. 1. Unless neither Amar nor Akbar have lassi, Anthony must have it. 2. If Amar does not have lassi, either Akbar or Anthony or both have it. 3. Anthony has lassi only if either Amar or Akbar or both have it. 4. Akbar and Anthony never have lassi together. Who order(s) lassi?
What will come in place of the question mark (?) in the following questions? 11.7589 ? ? = 3434 (a)3721 (b)4155 (c)3246 (d)11023 (e)None of these
A person travels on a cycle from home to church on a straight road with wind against him. He took 4 hours to reach there. On the way back to the home, he took 3 hours to reach as wind was in the same direction. If there is no wind, how much time does he take to travel from home to church?
In Mr. Mehta's family, there are one grandfather, one grandmother, two fathers, two mothers, one father-in-law, one mother-in-law, four children, three grandchildren, one brother, two sisters, two sons, two daughters and one daughter-in-law. How many members are there in Mr. Mehta's family? Give minimal possible answer.
RAW means
There are numbers from 1 to n, which are inverted such that it results in numbers from n to 1. If only two consecutive numbers are stampled at a time and are inverted, how many moves are required?
7 Answers Persistent, Soliton, Soliton Technologies,
There is a number that is 5 times the sum of its digits. What is this number? Answer is not 0.
In a college, the science department has three disciplines. In total, 280 students study chemistry, 254 students study physics and 280 students study biology. 97 students study both chemistry and physics, 138 students study both physics and biology, 152 students study both chemistry and biology. 73 students study all three disciplines. Can you determine how many students there are in the science department?
7 Answers Accenture, HSPA, Satyam,
Mrs. F has invited several wives of delegates to the United Nations for an informal luncheon. She plans to seat her 9 guests ina row such that each lady will be able to converse with the person directly to her left and right. She has prepared the following list. Mrs. F speaks English only. Mrs. G speaks English and French. Mrs. H speaks English and Russian. Mrs. J speaks Russian only. Mrs. K speaks English only. Mrs. L speaks French only. Mrs. M speaks French and German. Mrs. N speaks English and German. Mrs. O speaks English only. How many distinct seating arrangements are possible? Give all possible seating arrangements. Note that ABCD and DCBA are the same.
A husband and wife have a combined age of 91. The husband is now twice as old as his wife was when he was as old as she is now. How old is wife?
A blindfolded man is asked to sit in the front of a carrom board. The holes of the board are shut with lids in random order, i.e. any number of all the four holes can be shut or open. Now the man is supposed to touch any two holes at a time and can do the following. ? Open the closed hole. ? Close the open hole. ? Let the hole be as it is. After he has done it, the carrom board is rotated and again brought to some position. The man is again not aware of what are the holes which are open or closed. How many minimum number of turns does the blindfolded man require to either open all the holes or close all the holes? Note that whenever all the holes are either open or close, there will be an alarm so that the blindfolded man will know that he has won.
Why do you want to do job in Pharma midical company?
English 
