The following question asked at Infosys campus recruitment
held at Pragathi.
If 1>= y > x and xy=z.which of the following is not true?
i)z>0
ii)x=z
iii)y=z
iv)z>y
Answer Posted / pushpkant
Given that x<y<=1 :
(x is less than y and xy=z)
consider -inf -------------- 0 ---- 1 ---------- +inf
case i- y<0 then x<0 --> xy>0 --> z>0 --> choice i is true
case ii- y=0 yhen x<0 --> xy=0 --> z=0 --> z=y --> choice
iii is also true
case iii - y belongs to (0,1)and x=0 then
xy=0 --> z=0 --> z=x --> choice ii is also true
case iv- y belongs to (0,1) and x<y,(x!=0) then
xy<0 --> z<0 --> choise iv is not true
| Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
8 persons A,B,C,D,E,F,G,H are sitting in a round dining table.some arrangement was given and position of H was asked.I don't remember the question exactly.
a man covered 28 steps in 30 seconds but he decided to move fast and covered 34 steps in 18 seconds. how many steps are there on the escalator when stationary.
I and two of my friends were playing a game. For each win I get Rs 3. Totally I had three wins. Player 2 got Rs.9 and player 3 got Rs 12. How many games had been played?
Mr. Jaweri decided to walk down the escalator on the station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
if for h hours of work the salary is s and the employee gets x hours of medical leave, then what is the salary/hr ?
Given the length of the 3 sides of a triangle.Find the one that is impossible? (HINT : sum of smaller 2 sides is greater than the other one which is larger)
Draw venn diagram relating rhombus, quadrilateral & polygon
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.
Jack and Jill went up and down a hill. They started from the bottom and Jack met Jill again 20 miles from the top while returning. Jack completed the race 1 min a head of Jill. If the hill is 440 miles high and their speed while down journey is 1.5 times the up journey. How long it took for the Jack to complete the race ?
write a program that prompts the user to enter three sides of a triangle and prints whether it is a right triangle or not.
Find the next series: AC CG GO OE ?
If substitution is as it's burnout. Didn't remember. But this is one.
the difference b/w the compound interest payble half yearly and the simple interest on a certain sum cont out at 10% p.a for 1 year is Rs 25 what is the sum
sir i need rrb secunderabad goods guard previous exam model papers
A simple interest amount of Rs 6000 for 6 months is Rs 600. Calculate the annual rate of interest.