if length of a rectangle is incr by 20% and width is decr by
20% then area




Answers were Sorted based on User's Feedback



if length of a rectangle is incr by 20% and width is decr by 20% then area ..

Answer / zammil

we know,
area=b*h
b gets increased by 20% i.e (b+0.20b)
h gets decreased by 20% i.e (h-0.20h)

rewriting the equation(area=b*h),

area=(b+0.20b)*(h-0.20h)
area=b(1+0.20)*h(1-0.20)
area=b(1.20)*h(0.80)
area=b*h*(1.20)*(0.80)
area=b*h*(0.96)

i.e new area=0.96 times the original area
if 100% was the original area,it has decreased to 96%
so,100%-96%= 4%

Is This Answer Correct ?    37 Yes 2 No

if length of a rectangle is incr by 20% and width is decr by 20% then area ..

Answer / guest

Decreased by 4%
Refer GMAT'96 edition ..i think page 44

Is This Answer Correct ?    36 Yes 3 No

if length of a rectangle is incr by 20% and width is decr by 20% then area ..

Answer / asdf

it is dec by 4%

120% * 80% = 96%

ie dec by 4... sure now??

Is This Answer Correct ?    17 Yes 2 No




if length of a rectangle is incr by 20% and width is decr by 20% then area ..

Answer / meenakshy

i think d area will be 24/25.
since l=120/100=>6/5
and b= 80/100=>4/5

Is This Answer Correct ?    6 Yes 7 No

if length of a rectangle is incr by 20% and width is decr by 20% then area ..

Answer / amit kumar das

Increase by 1%

(Pls inform me if someone else with a different ans is v
sure)

Is This Answer Correct ?    4 Yes 13 No

Post New Answer



More General Aptitude Interview Questions

3. Given 1000 bottles of juice, one of them contains poison and tastes bitter. Spot the spoiled bottle in minimum sips?

10 Answers   Microsoft, Wipro,


what are all the topics they ask in the written test for EA(Electronics arts)???? please tell me

2 Answers   EA Electronic Arts,


what are the possible questions asked for bank po interviews?

0 Answers   Vijaya Bank,


Why do you want to join gnfc

0 Answers  


i need model questions and answers for RRB ASSISTANT LOCO PILOT EXAM AND ASSISTANT STATION MASTER EXAM

9 Answers   RRB,






The ratio of the present ages of Suman and Renu is 5 : 7 respectively. Four years hence the ratio will become 3 : 4 respectively. What is the present age of Renu in years? (a) 28 (b) 24 (c) 20 (d) 21 (e) None of these

5 Answers   iGate,


One side of a isocleles triangle and perpendicular to the base is given.so what is the base of a triangle?

2 Answers  


A wall with no windows is 11 feet high and 20 feet long. A large roll of wall paper costs Rs 25 and will cover 60 sq feet of wall. A small roll of wallpaper costs Rs 6 and will cover 10 sq feet of wall. What is the least cost for enough wallpaper to cover the wall? a) Rs 132 b) Rs 75 c) Rs 120 d) Rs 99

5 Answers   eClerx, XL Dynamics,


1. 2 containers labeled A and B are filled with red and blue marbles in given quantities: - Container RED BLUE A 6 4 B 60 40 Each container is shaken vigorously. After choosing 1 of the container, without looking, draw out a marble. From which container you have the max probability of choosing a blue marble?

2 Answers  


8 man work for 6 days to complete a work. How many men are required to complete same work in 1/2 day.

5 Answers   COSL,


hi friends i am neha and i want to know that for bank clerical exams what are the subjects i prepare for ex.reasoning,numericals,g.k so plz give me the names of total categories so can i prepare well for my bank exams plz helpme

6 Answers   BSRB,


All of the tickets for 2 music concerts, X and Y, were either purchased or given away, and the ratio of X tickets to Y was 2 to 1. Of the total number of X tickets and Y tickets, what percentage was purchased? 1) The total number of X tickets and Y tickets, is 240. 2) Of the X tickets, exactly 60% were purchased, and of the Y tickets, exactly 80% were purchased. a) if statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question. b) if statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question. c) if BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient. d) if EACH statement ALONE is sufficient to answer the question asked. e) if statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

0 Answers   Valtech,






Categories