A father is 4 times his son's age. And in 30 years son's age will be half of his father's age. How old are the father and son now???
Answer:
Son's age : 15
Father's age : 60
Explanation:
The ratio of the father and son's age is now 4 to 1 and 30 years from now it will be 2 to 1. The period of thirty years equals the difference of the two ratios or 2 to 1. Therefore, 30*2 = 60, the father's age and (1/2) * 30 = 15, the son's age.
Oct 25, 2010
Find out no. of days.
A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in??
Answer:
| 45 | (or)22 | 1 | days. |
| 2 | 2 |
Explanation:
Ratio of times taken by A and B = 1 : 3.
The time difference is (3 - 1) 2 days while B take 3 days and A takes 1 day.
If difference of time is 2 days, B takes 3 days.
| If difference of time is 60 days, B takes | 3 | x 60 | = 90 days. | ||
| 2 |
So, A takes 30 days to do the work.
| A's 1 day's work = | 1 |
| 30 |
| B's 1 day's work = | 1 |
| 90 |
| (A + B)'s 1 day's work = | 1 | + | 1 | = | 4 | = | 2 | ||
| 30 | 90 | 90 | 45 |
| 45 | = 22 | 1 | days. | |
| 2 | 2 |
Oct 24, 2010
What is the journey length?
A train travels at an average speed of 40kmph to reach its destination. But at d speed of 35kmph it reaches 15min late. wat's the journey length?
Answer:
70km
Answer:
70km
Oct 23, 2010
What is the relation?
A girl introduces a boy that he is my father's mother's son-in-law's son. How the girl related to the boy?
Answer:
Cousin
Answer:
Cousin
Oct 22, 2010
Find out the next no.
Try this...
9 = 4, 21 = 9, 22 = 9, 24 = 10, 8 = 5, 7 = 5, 99 = 10, 100 = 7, 16 = ?, 17 = ?
Answer:
16 = 7
17 = 9
Explanation:
The numbers on the right hand side signifies the number of letters in the spelling of the numbers on the left hand.
Eg: 16(Sixteen) = 7
17(Seventeen) = 9
9 = 4, 21 = 9, 22 = 9, 24 = 10, 8 = 5, 7 = 5, 99 = 10, 100 = 7, 16 = ?, 17 = ?
Answer:
16 = 7
17 = 9
Explanation:
The numbers on the right hand side signifies the number of letters in the spelling of the numbers on the left hand.
Eg: 16(Sixteen) = 7
17(Seventeen) = 9
Oct 21, 2010
How many times will it flash??
Answer:
451 times.
Explanation:
There are 60 minutes in an hour.
In ¾ of an hour there are (60 * ¾) minutes = 45 minutes.
In ¾ of an hour there are (60 * 45) seconds = 2700 seconds.
Light flashed for every 6 seconds.
In 2700 seconds 2700/6 = 450 times.
The count start after the first flash, the light will flashes 451 times in ¾ of an hour.
Who was the second?
5 boys were climbing a hill. J was following H. R was just ahead of G. K was between G & H. They were climbing up in a column.Who was the second?
Answer:
G.
Explanation:
The order in which they are climbing is R – G – K – H – J
What is the relation?
Introducing a boy, a girl said, "He is the son of the daughter of the father of my uncle." How is the boy related to the girl?
Answer:Brother
Explanation:
The father of the boy's uncle → the grandfather of the boy and daughter of the grandfather → sister of father.
Explanation:
The father of the boy's uncle → the grandfather of the boy and daughter of the grandfather → sister of father.
Oct 19, 2010
How many times do the hands of a clock coincide in a day?
How many times do the hands of a clock coincide in a day?
Answer:
22
Explanation:
The hands of a clock coincide 11 times in every 12 hours (Since between 11 and 1, they coincide only once, i.e., at 12 o'clock).
AM
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
PM
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
The hands overlap about every 65 minutes, not every 60 minutes.
The hands coincide 22 times in a day.
Answer:
22
Explanation:
The hands of a clock coincide 11 times in every 12 hours (Since between 11 and 1, they coincide only once, i.e., at 12 o'clock).
AM
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
PM
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
The hands overlap about every 65 minutes, not every 60 minutes.
The hands coincide 22 times in a day.
What will be the time?
Answer :
Explanation
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