There are two boxes, one containing 10 red balls and the
other containing 10 green balls. You are allowed to move the
balls between the boxes so that when you choose a box at
random and a ball at random from the chosen box, the
probability of getting a red ball is maximized. This maximum
probability is??
a)37/38
b)14/19
c)3/4
d)½
Answers were Sorted based on User's Feedback
Answer / sumit kumar
Take one red ball in 1st bag.
put the remaining nine red ball with 10 green ball in other bag
prob of red ball inn ist bag=1/2
prob of red in other bag=(1/2)*(9/19)
the req prob=p(A)+p(B)
=1/2+9/38
=28/38
=14/19
| Is This Answer Correct ? | 122 Yes | 19 No |
Answer / pakhi
this is for Anusha. Mathematics is not for dumb heads like
u. plz donot try to abuse mathematics. according to me u r
a bal.
| Is This Answer Correct ? | 6 Yes | 4 No |
Answer / tins
pakhi: dn't demorolize sm one, plz consult a psychatrist, ur
mental situation is n't gud,
Anusha: u hav asked a gud question, but in d ques given
above, asked for maximum probablity, which can only b
achieve by transvrng n-1 balls, where n is the bal in a bag.
| Is This Answer Correct ? | 5 Yes | 3 No |
Answer / anusha
why shud we keep only 1 ball in 1st box we can take 2 balls
in 1st nd move 8 red balls to 2nd box thn the answer
changes........no suuficient data in the question
| Is This Answer Correct ? | 2 Yes | 14 No |
There are 9 coins. Out of which one is odd one i.e weight is less or more. How many iterations of weighing are required to find odd coin?
Let C be a circle with centre P0 and AB be a diameter of C. Suppose P1 is the mid point of the line segment P0B, P2 is the mid point of the line segment P1B and so on. Let C1, C2, C3, ...... be circles with diameters P0P1, P1P2, P2P3 ... respectively. Suppose the circles C1 C2, C3, .... are all shaded. The ratio of the area of the unshaded portion of C to that of the original circle C is
Respected Sir/Mem Plz send me all 5 years solved question papers of sbi clerk on my Gmail id and that is chandelmishel@gmail.com
In a certain code, ?BELIEF? is written as ?AFKKDI?. How is ?SELDOM? written in that code ? (A) RDKCNL (B) TFKENP (C) RFKENM (D) RFKFNP (E) None of these
The average of x and y is 6.5. if z=4,what is the average of x,y,z.
A invests $12000, B invests $8000, C invests $6000 and they got a profit of $1200. How much share A got more than B and C?
0 Answers BPCL Bharat Petroleum, Sonata,
A store owner is packing small radios into larger boxes that measure 25 in. by 42 in. by 60 in. If the measurement of each radio is 7 in. by 6 in. by 5 in., then how many radios can be placed in the box?
Given the sequence A, BB, CCC, DDDD...........and so on , the 240th letter in the sequence will be: a) V b) U c) T d) W
100 glasses are there. A servant has to supply glasses to a person If he supplies the glasses without any damage he will get 3 paise otherwise he will loose 3 paise. At the end of supplying 100 glasses if he gets 270 paise, how many glasses were supplied safely.
1/4th of a no is thrice the 3/4th of the no. then find the no.
2 Answers Cyient, Infotech, Kochar Group,
Plese give pattern on NIC Exam
A report has 20 sheets each of 55 lines and each line consists of 65 characters. If this report is to be retyped with each sheet having 65 lines and each line of 75 characters wht will be the reduction percent in the pages ? (a) 22.5 % (b) 35 (c) 25 (d)none