A room is 30 X 12 X 12. a spider is ont the middle of the
samller wall, 1 feet from the top, and a fly is ont he
middle of the opposite wall 1 feet from the bottom. what is
the min distance reqd for the spider to crawl to the fly.

Answer Posted / sarathchand

h=30; b=12; h=12;

..............
| " |
| |
| | 12
| |
| " |
|..............|
30

Apply Geometry to get the minimum distance.

Mid-point [A] of side wall is at 6.
Spider [B] is at 5 from Mid-point of side wall (or) 11 from bottom (or) 1 form top.
Center point [C] of box is 15 away form the mid-point of side wall.

Then ABC is a right angled triangle.
Sides AB=5; AC=15;
Angle at A=90 degrees
BC=((AB^2)+(AC^2))^1/2
BC=15.811

Similarly,
Mid-point[D] of ooposite sidewall is at 6.
Fly [E] is at 5 from Mid-point of opposite side wall (or) 11 from top (or) 1 form bottom.
Center point [C] of box is 15 away form the mid-point of opposite side wall.

Then DEC is a right angled triangle.
Sides DE=5; DC=15;
Angle at D=90 degrees
CE=((DE^2)+(DC^2))^1/2
CE=15.811

Shortest distance from B(Spider) to E(Fly)
BE = BC + CE
BE = 31.622

Is This Answer Correct ?    5 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the selling price of can cost selling price of .. cost .. is Rs 60 ,10% profit over selling price ?

760


A man sells apples. First he gives half of the total apples what he has and a half apple. Then he gives half of the remaining and a half apple. He gives it in the same manner. After 7 times all are over. How many apples did he initially have?

1133


Need Questions Related To Quants

1346


three clocks where set to true time .First run with the exact time ..second slows one minute/day. third gains one minute/day. after how many days they will show true time.

1479


What number should be added to or subtracted from each term of the ratio 17 : 24 so that it becomes equal to 1 : 2.

716






1. Questions on probability 2. Questions on statistics (mainly growth rates, market shares, etc.) 3. Questions on general logics 4. Evaluate strengths and weekness of proposed product All questions are open test

4296


Package information is stored in a) DB2 Directory b) DB2 system tables c) DB2 catalog tables d) None of the above

1663


From a vessel on the first day, 1/3rd of the liquid evaporates. On the second day 3/4th of the remaining liquid evaporates. what fraction of the volume is present at the end of the II day.

982


There are 12 boys and 15 girls, How many different dancing groups can be formed with 2 boys and 3 girls. Which of the following fractions is less than 1/3?

1015


Could anyone please email the answers to the verizon 2014 aptitude test

1903


x + 4 y relation between x and y is x/2y = 3/2 ie x = 3y find the x -2y ratio

692


which questions will be coming

1747


Mr. Sohan works for Azania Company. The company grants 1000 shares to Mr. Sohan in 2008. At that point each share is worth Rs. 100. In 2010, he decides to sell his entire stake and at that point, the value is Rs. 120 per share. The government declares that the tax to be paid is 10% of the entire profit. Due to the inflation, the value of a rupee in 2010 is equivalent to 0.8 of a rupee in 2008. In this situation, which of the following model indicates the actual tax to be paid by the investor?

767


A bus started from bustand at 8.00am, and after staying for 30 minutes at a destination, it returned back to the busstand. The destination is 27 miles from the busstand. The speed of the bus is 18mph. During the return journey bus travels with 50% faster speed.At what time does it return to the busstand?

725


A room is 30 X 12 X 12. a spider is on the middle of the smaller wall, 1 feet from the top, and a fly is on the middle of the opposite wall 1 feet from the bottom. what is the min distance required for the spider to crawl to the fly.

838