the ratio of white balls to black balls is 1:2. if 9 balls
are added then the ratio of the balls become 2:4:3. find
the number of black balls. a) 12 b) 6 c)9 d)none

Answer Posted / mukesh

the data is not correct

Is This Answer Correct ?    3 Yes 6 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

At 20% discount, a cycle is sold at a selling price of 2500 Rs. What is the actual price?

838


if a,b>0 and a+b=2 then the max value of ab is

768


box 1 cotain odd value X or Y the box 2 =X i.e 7 or 12 box 3= Y has value 19 if X is 7 or 31 if x is 12 get even value X or Y Use any operator steps allowed 3

4355


Two trains 100 meters and 120 meters long are running in the same directions with speed of 72 km/hr and 54 km./hr. in how much time will the first train cross the second?

794


The numbers A, B and C make a sum of 98. If the ratio A:B is 2:3 and that B:C is 5:8, the third number would be

907






A fold density is 19 times greater than the water and for copper it is 9 times.At what ratio you can mix gold and copper to get 15 times denser than water.

786


Two sentences are given and we were required to print the common word in the two sentences. Words were delimited by space, full stop, ? , ! and , . The trick in the question was that common word should be printed only once so if ur first sentence contains two word "how" and second contains "how" then in output how should be printed only once for this u can replace each matched word in second sentence by spaces . i want a solution in C/C++ language

2357


Each row of letters or numbers has a rule connecting them. Write the next number or letterin the brackets. K , A , J , B , I , C , H , (_ _ _)

890


starting from 2 upto how many numbers we need to check whether 907 is prime or not?

1342


a person went to a shop and asked for change for 1.15paise. but he said that he could not only give change for one rupee. but also for 50p,25p,10p and 5p. what were the coins he had

980


Two trains are travelling at equilateral .Train A is travelling in the direction of earths spin.Other train B is travelling in opposite direction of earths spin.Which trains wheels will wear first?and why?

1995


Dinesh is seated 7 from the left and satish is seated 12 from the right. when they interchange their positions, dinesh is seated 22nd from the left. How many people are there?

794


Denominator is 4 greater than numerator if 10 is added to Denominator,the fraction becomes 1/8.what is the fraction.

713


A sales person multiplied a number and get the answer is 3, instead of that number divided by 3. What is th answer he actually has to get? 1/3

810


Mahesh and Ramesh are questioners. The time taken by Mahesh and make a question is double of that taken by Ramesh. If Mahesh made 3/2 questions less each minute and Ramesh made 3 questions less each minute, to make m questions, the time taken by Ramesh would be 2n minutes less than that taken by Mahesh. If Ramesh takes n minutes to make m questions, find the number of questions that Ramesh can make in a minute?

713