There are two vessels, A and B, both containing mixtures of alcohol and water of different concentrations. The volume of the mixtures in A and B are in the ratio 2 : 3. Equal quantities of the mixtures are taken out from the 2 vessels. The part taken out from A is mixed with the remaining mixture in B and the part taken out from B is mixed with the remaining mixture in A. The concentration of alcohol in the two resulting mixtures is equal. What part of the mixture in A was taken out to be mixed with the remaining part in B?
In how many different ways can one arrange 6 identical 25 paise coins, 6 identical 50 paise coins and 2 different one rupee coins in a table having 14 square and arranged in 2 rows and 7 columns. Such that no two squares occupied by 25 paise coins touch each other along the sides.
Leena, Nitin, Arun & Mohan crossed a lake in a canoe that could hold only two persons. The Canoe held two persons on each of three forward trips across the lake and one person on each of two return trips. Leena was unable to paddle when someone else was in the canoe with her. Nitin was unable to paddle when anyone else except Arun was in the canoe with him. Each person paddled continuously for at least one trip. Who paddled twice?
In a class of 150 students, students can either choose Electronics or Computer Science or neither (but not both). All students, whether they choose Electronics or Computer Science or neither, have to choose Mathematics. Every student has to choose at least one subject. The sum total of the number of students who choose Electronics and the number of students choosing Computer Science is a multiple of 9.
Q. In a class of 150 students, students can either choose Electronics or Computer Science or neither (but not both). All students, whether they choose Electronics or Computer Science or neither, have to choose Mathematics. Every student has to choose at least one subject. The sum total of the number of students who choose Electronics and the number of students choosing Computer Science is a multiple of 9.
If the number of students who choose only one subject is more than twice the number of students who choose two subjects, then what is the minimum value of the number of students who choose only one subject?
There are a certain number of pages in a book. arjun tore a certain page out of the book and later found that tha average of the remaining page numbers is 46*10/13(fraction). which of the following were the page number of the page that arjun had torn? a) 57 and 58 b)59 and 60 c)45 and
Time Speed Distance :: Easy question, need an approach
Two trucks carry the goods from City A to City B. The trucks start together.
The 2nd truck is 40km away from city B when the 1st truck reaches B after 4 hours. If in the second journey from A to B, the 2nd truck starts 15 min before 1st truck, it reaches 45 minutes after 1st truck.
A bag contains 25 paise, 50 paise and 1 rupee coins. There are in total 100 coins in the bag. If the total amount in the bag is Rs. 45, find the ratio of number of 25 paise coins to 1 rupee coins, when the number of 50 paise coins are 10 more than the 25 paise coins.
3:1
4:1
1:1
2:1
None of these