In a hotel, rooms are numbered from 101 to 550. A room is
chosen at random. What is the probability that room number
starts with 1, 2 or 3 and ends with 4, 5 or 6?

Answers were Sorted based on User's Feedback

In a hotel, rooms are numbered from 101 to 550. A room is chosen at random. What is the probabilit..

Total rooms=550-101+1=450
Favourable rooms= 1z4(where z=0,1,2,3,4,5,6,7,8,9)=10
1z5(where z=0,1,2,3,4,5,6,7,8,9)=10
1z6(where z=0,1,2,3,4,5,6,7,8,9)=10
2z4(where z=0,1,2,3,4,5,6,7,8,9)=10
2z5(where z=0,1,2,3,4,5,6,7,8,9)=10
2z6(where z=0,1,2,3,4,5,6,7,8,9)=10
3z4(where z=0,1,2,3,4,5,6,7,8,9)=10
3z5(where z=0,1,2,3,4,5,6,7,8,9)=10
3z6(where z=0,1,2,3,4,5,6,7,8,9)=10
total favourable rooms=90
probability=90/450=1/5=0.20

 Is This Answer Correct ? 11 Yes 2 No

In a hotel, rooms are numbered from 101 to 550. A room is chosen at random. What is the probabilit..

There are total 450 rooms.

Out of which 299 room number starts with either 1, 2 or 3.
(as room number 100 is not there) Now out of those 299
rooms only 90 room numbers end with 4, 5 or 6

So the probability is 90/450 i.e. 1/5 or 0.20

 Is This Answer Correct ? 9 Yes 2 No

More Puzzles Interview Questions

with heavy raining ,At Midnight 12, aap car lekar ja rahe ho aur bus stand par 3 log (80 years woman , ur best friend , ur lover ) khade he....lekin aap kisi ek ko hi apni car me bitha sakte ho..to aap kya karoge aur kyu ????

Four men - Abraham, Bobby, Clinton and Denial - are standing in a straight line. 1. One man is fair, handsome and unscarred. 2. Two men who are not fair, are each standing next to Abraham. 3. Bobby is the only man standing next to exactly one handsome man. 4. Clinton is the only man not standing next to exactly one scarred man. Who is fair, handsome and unscarred?

Take 5 Zero's and perform any mathematical opretion on them to make ans 120. (can't use any number)

At what time immediately prior to Six O'clock the hands of the clock are exactly opposite to each other. Give the exact time in hours, minutes and seconds.

There are 25 horses and only five tracks in a race. How do you find the second coming horse of all the 25 horses, provided there is no stop clock? (obviously, a horse cannot participate more than once in a race).

|3\3 9/9| ! 3["9"" ["39"" | \9/ | ¡ "9""]3 ""9"] YOU "" "" understand this Mssg!! Send

Plz mail me some aptitute questions which helps me to face SBI clerical exam.

Vipul was studying for his examinations and the lights went off. It was around 1:00 AM. He lighted two uniform candles of equal length but one thicker than the other. The thick candle is supposed to last six hours and the thin one two hours less. When he finally went to sleep, the thick candle was twice as long as the thin one. For how long did Vipul study in candle light?

The minute and the hour hand of a watch meet every 65 minutes. How much does the watch lose or gain time and by how much?

Four prisoners escape from a prison. The prisoners, Mr. East, Mr. West, Mr. South, Mr. North head towards different directions after escaping. The following information of their escape was supplied: ? The escape routes were North Road, South Road, East Road and West Road ? None of the prisoners took the road which was their namesake ? Mr. East did not take the South Road ? Mr.West did not the South Road ? The West Road was not taken by Mr. East What road did each of the prisoners take to make their escape

I'm something, i appear twice in a week but none in a day.I appear once in a year but none in a month. what am i?

On evey Sunday Amar, Akbar and Anthony lunch together at Preetam-Da-Dhaba where they order lassi based on following facts. 1. Unless neither Amar nor Akbar have lassi, Anthony must have it. 2. If Amar does not have lassi, either Akbar or Anthony or both have it. 3. Anthony has lassi only if either Amar or Akbar or both have it. 4. Akbar and Anthony never have lassi together. Who order(s) lassi?

Categories