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plutorose
Joined: 05 Aug 2005
Posts: 1
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 Posted: Fri Aug 05, 2005 5:04 pm Post subject: quantitative teasers |
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hi all
help me to solve these probs
1)There r 3 boys & 4 girls; Howmany ways they r arranged such that boys should be always together ???Ans: 240
2)Radius of a circle is 5cm , if we draw a rectangle of maximum size, what is the area of rectangle ans : 50 cmsq
3)man walks at speed of 8 km/h 300 mtrs length train crosses man in 30 sec from back, find speed of train ans: 44 km/hr
4)Two motor cycles A & B are started from one point at 4 Kmph & 6 Kmph; After 45 min B starts returning , at what
time they will reach.... (Ans: 3.6 km) |
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shaji
Serious about CAT
Joined: 22 May 2005
Posts: 71
Location: UK
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| Posted: Sat Aug 06, 2005 11:18 am Post subject: Re: quantitative teasers |
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| plutorose wrote: | hi all
help me to solve these probs
1)There r 3 boys & 4 girls; Howmany ways they r arranged such that boys should be always together ???Ans: 240
2)Radius of a circle is 5cm , if we draw a rectangle of maximum size, what is the area of rectangle ans : 50 cmsq
3)man walks at speed of 8 km/h 300 mtrs length train crosses man in 30 sec from back, find speed of train ans: 44 km/hr
4)Two motor cycles A & B are started from one point at 4 Kmph & 6 Kmph; After 45 min B starts returning , at what
time they will reach.... (Ans: 3.6 km) |
Hi;
Answers to Questions 2 & 3 are correct. Question 4 seems incomplete and Question 1's answer 240 should read 720.
Please re-check and advise for further explaination.
Regards;
Shaji |
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shaji
Serious about CAT
Joined: 22 May 2005
Posts: 71
Location: UK
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| Posted: Sat Aug 06, 2005 3:16 pm Post subject: Re: quantitative teasers |
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| shaji wrote: | | plutorose wrote: | hi all
help me to solve these probs
1)There r 3 boys & 4 girls; Howmany ways they r arranged such that boys should be always together ???Ans: 240
2)Radius of a circle is 5cm , if we draw a rectangle of maximum size, what is the area of rectangle ans : 50 cmsq
3)man walks at speed of 8 km/h 300 mtrs length train crosses man in 30 sec from back, find speed of train ans: 44 km/hr
4)Two motor cycles A & B are started from one point at 4 Kmph & 6 Kmph; After 45 min B starts returning , at what
time they will reach.... (Ans: 3.6 km) |
Hi;
Answers to Questions 2 & 3 are correct. Question 4 seems incomplete and Question 1's answer 240 should read 720.
Please re-check and advise for further explaination.
Regards;
Shaji |
Refer to Question 4.
Motor cycles A&B meet at point 3.6Km from the starting point. I think this is what can be inferred from the answer U mentioned. A & B meet after 54 minutes of starting.
Regards;
Shaji. |
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