if a number is choosen between 100 and 999 includeing these
numberrs what is the provbabilty that the number selected
does not contain a 7 is
- 23 Answers
- 41138 Views
- Deshaw, Microsoft, Persistent, I also Faced
- E-Mail Answers
Answer Posted / dayquest
total numbers from 100 to 999 = 900
total no of 7's
700 - 799 = 100
70-79 in all 100's except seventh hundred = 90
07,17,27...67,87,97 in
all 100's except seventh hundred = 90
total - 280
probability = (900-280)/900
= 31/45
| Is This Answer Correct ? | 12 Yes | 15 No |
Post New Answer View All Answers
If the % of defective balls is 10% balls,and the number of defective balls is 5.The number of balls is
There are 5 boxes in a cargo. The weight of the 1st box is 200 KG, the weight of the 2nd box is 20% higher than the third box, whose weight is 25% higher than the 1st box weight. The 4th box which weighs 350 KG is 30% lighter than the 5th box. Find the difference in average weight of the 4 heaviest boxes and the four lightest boxes.
What is degree of a Relation?
A batsman scored 120 runs including 16 fours and 2 sixes. What percentage of his total score did he make by running between the wickets?
r= 5 n = 3 . If first pole has 2 flags ,third pole has 1 flag how many ways the remaining can be arranged?
Want to get some material for apptitud e for banking preparation
any body send me the sample paper for pnb dy.managers,to ravitejareddy.r@gmail.com
4^^61 + 4^^62 + 4^^63 + 4^^64 . this sum is divisible by which of the following ?
In covering a distance of 30 km, abhay takes 2 hours more than sameer. If abhay doubles his speed, then he would take 1 hour less than sameer. Abhay's speed is?
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?
sam and mala have a conversation. sam says i am vertainly not over 40. mala says i am 38 and you are atleast 5 years older than me. Now sam says you are atleast 39. all the sattements by the two are false. How hold are they realy.
find then next series number 5,6,7,8,10,11,14,..?
Two distinct no's are taken from 1,2,3,4......28. Find the probability that their sum is less than 13
The area of the maximum size of the circle described from the 10 square inch square?
There are 3 societies A, B, C.A lent cars to B and C as many as they had already.After some time B gave as many tractors to A and C as many as they have. After sometime c did the same thing. At the end of this transaction each one of them had 24.Find the cars each originally had.
