Interested to Buy Any Domain ? << Click Here >> for more details...
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
- 46600 Views
- Deshaw, Microsoft, Persistent, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / satheshramasamy
no 0f 7's in 100 to 200 is
107,117,127,137,147,157,167,170,171,172,173,174,175,176,177,
178,179,187,197.
so totally 20 7's in 100-200.
so totally we have (20*9 +1) sevens b/w 100-999.totalling
181.
therefore prob is 181/((999-100)+2)=181/901=0.2009
| Is This Answer Correct ? | 2 Yes | 16 No |
Answer / subbu
nos with 7 from 100 to 200 = 107,117,127,....197 and 170.
so 11.
like wise from 200 to 300 it is 11.
therefore...9 * 11 = 88.
total nos=900.
prob without 7's =1-99/900= 0.89
| Is This Answer Correct ? | 3 Yes | 21 No |
Answer / sabarish
nos with 7 from 100 to 200 = 107,117,127,....197 and 170.
so 11.
like wise from 200 to 300 it is 11.
therefore...8 * 11 = 88.
total nos=899.
prob without 7's =1-88/899= 0.902 approx
| Is This Answer Correct ? | 6 Yes | 34 No |
if a 36 cm thread is used to wrap a book , lengthwise twice and breadthwise once, what is the size of the book?
how many state from india
which country is following one party system
Difference between the perimeters of two concentric circles is 66. Find the difference between radius.
Four Members A,B,C,D are playing a game .A person losing a game should double the amount of others .B,C,D are losing in order after three games .The amount after 3 games are A&B having 40,D is having 16&C 80. Each questions carry one mark: a) who started with small amount of money? b) who started with greatest amount of money? c) what amount did B have?
in the human body cowpers glands form a part of which one of the following
If from a book of 100 pages, some pages were torn off, and the sum of remaining pages comes out to be 4949. How many minimum number of pages were torn off?
pls send me US TECNOLOGYS placement papers.
dear sir, i am preparing the all rrb board "tc,cc,asm" entrance exam. sir please send me all board previous papers in my email id "dharmendradubey@ymail.com"or"dharmendra_479@rediffmail.c om" thanks
WHO WAS THE WINNER IN THE WOMEN'S U.S OPEN.2012. (A)VENUS WILLIAMS (B) SVETLANA KUZNETSOVA (C) PETRA KVITOVA (D)SERENA WILLIAMS
There are 1, 40, 00, 000 pencils of lengths ranging from 3 to 6 inches and are put up straight. The average length of 80% of pencils is 5 inches. Calculate the total length spanned by the pencils.
Rakesh buys 1 gallon of milk for Rs.12 and mixes it with 20% water. He then sells it for Rs.15, What is the percentage of gain that Rakesh would get.
English 
