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
Answer Posted / 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 |
Post New Answer View All Answers
Complete the given number series 240, 240, 120, 40,?, 2 ?
The diameter of a circle is 21 metres. It will take how many revolutions to cover a distance of 6.6 km?
1,40,00,000 pencils are put up straight. All the pencils are of length range 3 to 6 inches. 80% of the pencils have average of five inches. So find out the total length spanned by the pencils?
There are some 20 Basketball players & 30 Football players, and 25 cricket players. 1 of them plays all the three games. 8 of them plays at least two games. They are 50 altogether. How many of them plays none of the games.
Choose the odd man out from the below mentioned options?
A building with height D shadow upto G. What is the height of a neighbouring building with a shadow of C
i attended sbi clerical interview on28/04/10.on 20/08/10 i called sbi headoffice 022-22024619 they said tht final result will be declared after 2 months.i also had another no 022-22826300.if anybody are interested cal those no's.my mobile no is 9010347790(udamsingh)
one man or two women or three boys can do a work in 44 days then one man, one women and one boy together can fininsh the same work in ---- days
Three years ago my uncle offered me a used keyboard for Rs. 1024. A year later he offered me the same for Rs. 640 and last year he wanted Rs. 400 and now he is willing to sell it to me for Rs. 250. But I have decided to buy it when he reduces the price next time. If he is constantly reducing its price, at what price will he offer the keyboard to me next?
a block of ice floats on water in a beaker, as the ice melts,the water level in the beaker will
which country is following one party system
A 16 stored building has 12000 sq.feet on each floor. Company A rents floors and company B rents 4 floors. What is the number of sq.feet of unrented floor space.
i need icet model papers,po exam papers....please send urgent
1. Questions on probability 2. Questions on statistics (mainly growth rates, market shares, etc.) 3. Questions on general logics 4. Evaluate strengths and weekness of proposed product All questions are open test
Sir iam going to write exam for the post of Officers under training in APSRTC. Please send me the model papers to my mail ganjiramji@gmail.com