Q) Susan wants to put up fencing around three sides of her
rectangular yard and leave a side of 20 feet unfenced. If
the yard has an area of 680 square feet, how many feet of
fencing does she need?
a) 38
b) 44
c) 72
d) 88
e) 97
Answers were Sorted based on User's Feedback
Answer / anirudh
Asnswer Is 88.
Explanation :-
Rectangle has 4 sides with opposite sides equal in length. Let these be a,b
Now, we are given area as 680
ie. a*b=680
If a=20, then b=34
Now fencing is to be done on 3 sides leaving one a side i.e 2b+a
2*34+20 =88
| Is This Answer Correct ? | 26 Yes | 0 No |
Answer / santhoshi
lb=680;
l*20=680;
l=34;
three sides fencing =2 sides length + one side breadth.
=2*38 + 20
=88;
so answer "d";
| Is This Answer Correct ? | 8 Yes | 0 No |
Answer / kishor
Area =length x breadth
breadth=20
area given=680
length=area/breadth=680/20=34
so when 20 ft.side is to be left only two length side and 1 breadth is to be fenced so
2x34+20=68+20=88 ft.
| Is This Answer Correct ? | 2 Yes | 0 No |
in a city, there are 100 buildings numbered by corporation between 0-100, how many twos are shown in door,
which company is invented the tally software.
When the mechanical number is one, voltage is called
Mirror image of ear.
Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him. What is the length of faster train?
what is 0.350 0.425 and 0.075 what is the answer and show your work
Find the next letter in the series B,F,J,P ---
A horse chases a pony 2 hours after the pony runs. Horse takes 4 hours to reach the pony. If the average speed of the horse is 81 kmph, what s the average speed of the pony?
What is the error in the given sequence. 2,3 6,7 14,15 29,46.
1. There are two boxes, one containing 10 red balls and the other containing 10 green balls. You are allowed to move the balls between the boxes so that when you choose a box at random and a ball at random from the chosen box, the probability of getting a red ball is maximized. This maximum probability is
1,2,2,4,8,?
what is core banking?