Mathmetics

ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

Q1.	In an examination, a student's average marks were 63. If he had obtained 20 more marks for his Physics and 2 more marks for his Chemistry, his average would have been 65. How many subjects were there in the examination ?

1)	8	2)	10
3)	11	4)	14
5)	None of these

Q2.	The batting average of 30 innings of a cricketer is 40 runs. His highest score exceeds his lowest score by 100 runs.If these two innings are not included, the average of the remaining 28 innings is 38. What is the lowest score of the player ?

1)	12	2)	16
3)	18	4)	20
5)	None of these

Q3.	The average salary of 16 employees in a company is Rs.800 per month. If the manager’s salary is added, the average salary increase by Rs.50. What is the salary of the manager ?

1)	Rs.1650	2)	Rs.2000
3)	Rs.2400	4)	Rs.3500
5)	None of these

Q4.	The average age of 50 students of a class is 16 years. When 10 new students are admitted, then the average age increased by 0.5 years. What is the average age of the new students ?

1)	17 years	2)	18 years
3)	19 years	4)	20 years
5)	None of these

Q5.	The average expenditure of a man for the first five month of a year is Rs.5,000 and for the next seven- month is Rs-5,400. He saves Rs.2,300 during the year. What his average monthly income ?

1)	Rs.5,425	2)	Rs.5,500
3)	Rs.5,446	4)	Rs.5,600
5)	None of these

Q6.	There are some adult students in a class and their average age was 40 years. If 12 new students with an average age of 50 years join with them, their new average age will be increases by 5 years.What was the original strength of that class ?

1)	8	2)	10
3)	12	4)	15
5)	None of these

Q7.	The average age of a class of 30 students is 12. If the teacher is also included the average becomes 13 years. Find the teacher's age.

1)	39 years	2)	40 years
3)	44 years	4)	Data Inadequate
5)	None of these

Q8.	There were 35 students in a hostel. If the number of the students is increased by 7, then the expenses of the mess increase by Rs.42 per day, while the average expenditure per head diminishes by Rs.1. What the original expenditure of the mess per day ?

1)	Rs.400	2)	Rs.432
3)	Rs.442	4)	Rs.420
5)	None of these

Q9.	In an examination, a student's average marks were 63. If he had obtained 20 more marks for his Mathematics and 2 more marks for his Geography, his average would have been 65. How many subjects were there in the examination ?

1)	8	2)	10
3)	11	4)	14
5)	None of these

Q10.	A batsman makes a score of 96 runs in the 16th innings and thus increases his averages by 2. What is his average runs after 16th innings ?

1)	62	2)	64
3)	66	4)	72
5)	None of these