From a solution having milk and water in the ratio 2 : 3, 15 lts of solution is drawn out and replaced with water. This operation is done a total of thrice. If the ratio of milk and water now is 25 : 231, find the volume of original solution.

1.   30 lts

2.  40 lts

3.  42 lts

4.  45 lts

5.  47 lts

View Answer  
5
Correct Answer :

40 lts


Explanation :
No Explanation available for this question

To a solution having milk and water in the ratio 2 : 3. 15 lts of water is added and the 15 lts of the solution is drawn out. This operation is done a total of thrice. If the ratio of milk and water now is 25 : 231, find the volume of original solution.

1.  25 lts

2.  30 lts

3.  40 lts

4.  45 lts

5.  60 lts

View Answer  
5
Correct Answer :

25 lts


Explanation :
No Explanation available for this question

In what ratio must water be mixed milk so as to make a profit of 16(2/3) % on selling the 3 mixture at a rate same as that of cost price milk. Given that the milk-man mixes Bisleri instead of tap water and the cost of Bisleri is 20% of the cost of milk

1.  7 : 41

2.  1 : 6

3.  6 : 7

4.  5 : 23

5.  1 : 7

View Answer  
5
Correct Answer :

5 : 23


Explanation :
No Explanation available for this question

Three solutions, P, Q and R are such that they have milk and water in the ratio 2 : 3, 1 : 1 and 3 : 2. Solutions P and Q are mixed in the ratio 2 : 1 to result in solution X. Solutions Q and R are mixed in the ratio 1 : 2 to result in solution Y. Now solution X and Y are mixed in the ratio 1 : 1. Find the ratio of milk and water in the new solution.

1.  1 : 1

2.  1 : 2

3.  2 : 3

4.  3 : 2

5.  1 : 3

View Answer  
5
Correct Answer :

1 : 1


Explanation :
No Explanation available for this question

The ratio of the average age of the class without the teacher to the average age including the teacher is 8 : 9. If the ratio of the teacher’s age and the average age of the students is 3 : 1, find the number of students.

1.  8

2.  9

3.  10

4.  12

5.  15

View Answer  
5
Correct Answer :

15


Explanation :
No Explanation available for this question

The average percentage scored by Amal in the six subjects in the board exams is 83%. If the highest percentage scored in any subject is 91%, what could be the lowest percentage of marks scored in any subject

1.  43%

2.  48%

3.  51%

4.  66%

5.  75%

View Answer  
5
Correct Answer :

43\%


Explanation :
No Explanation available for this question

The average of 10 integers (with none of them being equal to zero) is zero. If the average of the negative numbers among them is -5, find the average of the positive numbers among them.

1.  5

2.  8

3.  10

4.  20

5.  cannot be determined

View Answer  
5
Correct Answer :

cannot be determined


Explanation :
No Explanation available for this question

The International School has three divisions P, Q and R in class Xth, each having same number of students. The average marks scored by students of P and Q is 60%, by those of Q and R is 75% and by those of P and R is 62%. Arrange the three divisions in increasing order of the average marks scored by the students of the three divisions.

1.   R, Q, P

2.  Q, R, P

3.  R, P, Q

4.  P, Q, R

5.  Q, P, R

View Answer  
5
Correct Answer :

P, Q, R


Explanation :
No Explanation available for this question

In analyzing the performance of a batsman, three averages are found out. One is found by dividing the total runs scored by the number of innings in which the batsman is out. Second average is calculated in the above way but by excluding all innings when the batsman was out for a duck. The third average is found by dividing the total runs scored by number of innings played. If Kohli’s average are 45. 54 and 36 respectively, find the ratio of the number of innings played the number of innings he was not out and the number of innings when he got out for a duck.

1.  15:3:2

2.  15: 3:4

3.  12:4:1

4.  12:6:1

5.  15 : 12 : 10

View Answer  
5
Correct Answer :

15:3:2


Explanation :
No Explanation available for this question

The average marks of all students who scored more than 70% marks is 74%. The average of all students who scored more than or equal to 60% is 68%. Of the students scoring more than or equal to 60%, at least what percent of students have scored between 60% and 70%

1.  25%

2.  30%

3.  34.25%

4.  37.76%

5.  42.84%

View Answer  
5
Correct Answer :

42.84\%


Explanation :
No Explanation available for this question
Previous Next

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python