A telephone cable is to be run from a junction point on the bank of a river 900 meters wide to an office that is located 3000 meters downstream on the opposite bank. If the cost of laying cable under water is Rs. 5 per meter and that of laying overhead on land is Rs. 4 per meter, find the point downstream where the cable is to cut across the river.(a) 450(b) 1800(c) 2800(d) 2100(e) 2700

bangers

 Profile Answers by bangers Questions by bangers

• Nov 22nd, 2010

1800. i think by laying this the total cost will be much less

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The productivity of a team of programmers is given by the function P(N) = 4000 √N, where N is the total strength. Find the percentage change in productivity if the strength of the team is increased by 1%.(a) 0.75% (b) 0.25%(c) 0.5%(d) 1%(e) 2%

mahaeie

 Profile Answers by mahaeie Questions by mahaeie

• Nov 13th, 2010

p(n)=4000 a`s`nincrease in 1%= 1+0.01=1.01p(1.01n)=4000 a`s`(1.01n)inc in productivity=[p(1.01n)-p(n)]/p(n)               &nb...

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A family, planning a weekend trip, decides to spend not more than a total of 8 hours driving. By leaving early in the morning, they can average 40 miles per hour on the way to their destination. Due to the heavy Sunday traffic, they can average only 30 miles per hour on the return trip. What is the farthest distance from home they can plan to go?

atul

• Aug 7th, 2011

137.5mile

saritha1406

 Profile Answers by saritha1406 Questions by saritha1406

• Oct 13th, 2010

Here 1 km = 0.625 miles (approximately)40 miles = 40 * 1/0.625 kms/hr = 64 kms/hr30 miles = 30 * 1/0.625 kms/hr = 48 kms/hrh= time taken to travel destinationDistance travelled till destination = 64 *...

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There is a circular pizza with negligible thickness that is cut into 'x' pieces by 4 straight line cuts. What is the maximum and minimum value of 'x' respectively? (WITH EXPLAINATION)

mohammed rifai

• Jul 19th, 2012

Min can be 5 pieces with 4 lines next to each other on the surface. Max I have see is 11. visualize + as 2 straight lines in the center and an X crossing a little away from the center of + .

anoop

• Jun 20th, 2012

Same answer as above...I want to add some info...to get maximum pieces... starting from 1st cut..apply another cut in such a way that it cuts all previous lines..

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