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Optical Cable Laying Cost
A optical 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) 3900 (c) 1800 (d) 2100 (e) 2700
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Storage Space
The storage space required is given by the function P(N) = 4000 √N, where N is the number of boxes used. Find the percentage change in storage if the number of boxes is increased by 1%.(a) 0.75% (b) 0.25% (c) 0.5% (d) 1% (e) 2%
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File Transfer
A file is transferred from one location to another in 'buckets'. The size of the bucket is 10 kilobytes. The bucket gets filled at the rate of 0.0001 kilobytes per millisecond. The transmission time from sender to receiver is 10 milliseconds per bucket. After the receipt of the bucket the receiver sends an acknowledgement that reaches sender in 100 milliseconds. Assuming no error during transmission,...
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Local Time of Landing
An aircraft takes off from A (89o N Lat, 10o E Long) at 2.00 AM local time to B (32o N Lat, 70o W Long). If the flying time is 10 hours what is the local time of landing at B?(a) 5.40 AM (b) 4.00 AM (c) 6.40 AM (d) 7.00AM (e) 8.00AM
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Percentage of Rise in Temperature
The temperature at Chennai is given by the function: -t2/6+4t+12 where t is the elapsed time since midnight. What is the percentage rise (or fall) in temperature between 4.00 PM and 9.00 PM?(a) 23.5% (b) 33% (c) -32.5 (d) 20% (e) 46%