MATHS QUIZ 8 for BANK/SSC



AVERAGE


1. A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5                consecutive months. How much sale must he have in the sixth month so that he gets an        average sale of Rs. 6500?
 (i)  Rs. 4991
 (ii) Rs. 5991
(iii) Rs. 6001
(iv) Rs.6991
(v)  None




2. The average weight of 8 person's increases by 2.5 kg when a new person comes in place     of one of them weighing 65 kg. What might be the weight of the new person?


(i)  76 kg
(ii) 76.5 kg
(iii) 85 kg
(iv) Data inadequate
(v)  None of these

3. A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?


(i) 28 
4
years
7
(ii) 31 
5
years
7
(iii) 32 
1
years
7
(iv) None of these
(v) Data inadequate

4. The average marks obtained by 120 candidates in a certain examinations 35.if the average marks of passed candidate is 39 and that of the failed candidates is 15,what is the number of candidates who passed the examination?
(i)  110
(ii) 115
(iii)120
(vi)100
(v) None of these



5. 
The average age of 8 persons in a committee is increased by 2 years when two men aged 35 years and 45 years are substituted by two women.Find the average age of these two women?
(i)  48
(ii) 36
(iii)42
(vi)29
(v) None of these

6.
.In a class, there are 20 boys whose average age is decreased by 2 months, when one boy aged 18 years is replaced by a new boy.Find the age of new boy.

(i)  19 years
(ii) 14 years 6 month
(iii)15 years
(vi)14 years 8 month
(v) 12 years

7. One -third of certain journey is covered at the rate of 25kmph,one-fourth at the rate of 30kmph and the rest at 50 kmph. Find the average speed for the whole journey.
(i)  33.33 kmph
(ii) 36
(iii)42
(vi)27
(v) None of these

8. 
The average salary of the entire staff in a office is Rs 120 per month.The average salary of officers is Rs 460 and of non officers is Rs 110. If the number of officers is 15,then find the No of non-officers in the office.

(i)  480
(ii) 500
(iii)600
(vi)430
(v) 510



9. .There were 35 students in a hostel.If the number of students increased by 7, the expenses of the mess increases by Rs. 42 per day,while the average expenditure per head diminishes by Rs.1.Find the original expenditure of the mess.
(i)  420
(ii )400
(iii)480
(vi)460
(v) None of these

10. The average weight of A,B,and C is 84 kg. If D joins the group, the average weight of the group becomes 80 kg.If another man E who weights is 3 kg more than D Replaces A, Then the average of B,C,Dand E becomes 79 kg. What is the weight of A?

(i)  64
(ii) 72
(iii)75
(vi)100
(v )80
 

ANSWERS:- 1.(i)  2.(iii)  3.(ii)  4.(iv)  5.(i)  6.(iv)  7.(i)  8.(v)  9.(i)                        10.(iii)




MATHS QUIZ 8 for BANK/SSC MATHS QUIZ 8 for BANK/SSC Reviewed by Priyanka on 11:32:00 Rating: 5

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