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
Answer Posted / vinodh
450
| Is This Answer Correct ? | 0 Yes | 7 No |
Post New Answer View All Answers
A man buys 12 lts of liquid which contains 20% of the liquid and the rest is water. He then mixes it with 10 lts of another mixture with 30% of liquid.What is the % of water in the new mixture?
A plane moves from 9? N40? E to 9? N40? W. If the plane starts at 10 am and takes 8 hours to reach the destination, find the local arrival time.
There are 3 males and 2 females,find the possible no of orders that can be made by making the arrangement as in between two males one women is allowed to sit?
Find the next number in the series 12,21,,112,121,122---
Two trains leaving from two station 50 miles away from each other with constant speed of 60 miles per hour, approaches towards each other on different tracks. if length of each train is 1/6 mile. when they meet How much time they need to pass each other totally ?
There are 9 coins. One of 9 is less weighted and others have equal weighed. Find the minimum no of balances to find the defective coin?
Find the nth number in the series is 1, -3, 5, -7.___
There are some houses in a street back to back. And they that house behind 10 were 23. How many houses in the street?
Technical questions
how to retrieve the recent record from the database using sql query. suppose the table has the columns only ename,job,salary columns
1,2,3,4,5,6,7,8,9 station. route between any 2 station is there only if the 2 digit nob. is divisible by 3. e.g. route exist between 1 to 2 because 12 is divisible by 3 how many station have routes to 8 either direct or indirect
A fruit seller had some balls. He sells 40% balls and still has 420 balls. How many balls he had initially?
A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A. How many days will they take to do the work together ?
If A=Z, B=Y, C=X, .......... Z=A, Then POCKET = ?
In a fraction, if 1 is added to both the numerator at the denominator, the fraction becomes 1/2. If numerator is subtracted from the denominator, the fraction becomes 3/4. Find the fraction.