Ques:- A group consists of 4 men, 6 women and 5 children. In how many ways can 3 men, 2 women and 3 children selected from the given group?
Ques:- A work is done by two people in 24 minutes. One of them alone can do it in 40 minutes. How much time will the other person wiil take to complete it
Recent Answer : :
1/24-1/40
(5-3)/120
2/120
1/60
60 minutes
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Recent Answer : :
“Since I’ve been working and gaining experience to get into this company, I’d like to stay a long time if I’m offered the job, since this is where I want to be. “ “As long as there’s a lot of work to do, then I’d be happy to stay for a long time. Since I’m a busybody, I like to being productive most of the time.”
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Recent Answer : :
Let the distance between each pole be x m. Then, distance up to 12th pole = 11x m
∴ Speed = 11x22m/s
∴ Time to cover total distance up to 20th pole
= 19x×2411x
= 41.45 s
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Recent Answer : :
24 Kmp/h
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A. 14
B. 15
C. 16
D. 17
Recent Answer : :
b
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Recent Answer : :
FLRIHO=cooler
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A. 6 years
B. 7 years
C. 8 years
D. 10 years
Recent Answer : :
6 yeara old
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A. Skirt
B. Shirt
C. Thong
D. Petticoat
Recent Answer : :
petticoat
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A. Coal mines
B. Gold mines
C. Iron ore
D. Petroleum
Recent Answer : :
Petroleum
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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 : :
55
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Recent Answer : :
Hog
Ques:- A boy has Rs 2. He wins or loses Re 1 at a time If he wins he gets Re 1 and if he loses the game he loses Re 1. He can loose only 5 times. He is out of the game if he earns Rs 5. Find the number of ways in which this is possible?
Recent Answer : :
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0L -> 1 way
1L -> 3 ways
2L -> 7 ways
3L -> 4 ways
4L -> 1 way
total 16 ways
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Explanation:
The number of ways of selecting three men, two women and three children is:
= ⁴C₃ * ⁶C₂ * ⁵C₃
= (4 * 3 * 2)/(3 * 2 * 1) * (6 * 5)/(2 * 1) * (5 * 4 * 3)/(3 * 2 * 1)
= 4 * 15 * 10
= 600 ways.