Arithmetic Quiz 11

June 29, 2016

Question 1: The average of first 5 multiples of 4 is:

(a) 9
(b) 8
(c) 18
(d) 12
(e) 9

Answer is : 12

 

Question 2: There are two sections A and B of a class, consisting of 29 and 22 students respectively. If the average weight of section A is 48 kg and that of section B is 58 kg, find the average weight of the whole class.

(a) 104.54
(b) 52.31
(c) 39.08
(d) 96.51
(e) 41

Answer is : 52.31

 

Question 3: The distance between two stations A and B is 637 km. A train covers the journey from A to B at 87 km per hour and returns back to A with a uniform speed of 63 km per hour. Find the average speed of train during the whole journey.

(a) 89.91
(b) 73.08
(c) 140.58
(d) 108.07
(e) 102.76

Answer is : 73.08

 

Question 4: The average of 76 numbers is 85 . If two numbers, 32 and 43 are discarded, then the average of the remaining numbers is nearly:

(a) 86.28
(b) 176.97
(c) 57.88
(d) 65.34
(e) 117.73

Answer is : 86.28

 

Question 5: The average score of a cricketer for 13 matches is 59 runs. If the average for the first 8 matches is 31 ,then find the average for the last 5 matches.

(a) 86.1
(b) 109.1
(c) 148.9
(d) 72.2
(e) 103.8

Answer is : 103.8

 

Question 6: There were 50 students in a hostel. Due to the admission of 8 new students the expenses of the mess were increased by Rs 57 per day while the average expenditure per head diminished by Rs 5 . What was the original expenditure of the mess?

(a) 2443
(b) 1363
(c) 3470
(d) 4299
(e) 2605

Answer is : 2443

 

Question 7: 7 persons went to a hotel for taking their meals. 6 of them spent Rs. 86 each on their meals and the 7 th spent Rs. 15 more than the average expenditure of all the nine. What was the total money spent by them.

(a) 619.5
(b) 1074.6
(c) 866.5
(d) 1178.9
(e) 655.8

Answer is : 619.5

 

Question 8: The average of first 10 multiples of 3 is:

(a) 25
(b) 27
(c) 7
(d) 10
(e) 15

Answer is : 15

 

Question 9: There are two sections A and B of a class, consisting of 22 and 40 students respectively. If the average weight of section A is 47 kg and that of section B is 55 kg, find the average weight of the whole class.

(a) 68.36
(b) 60.5
(c) 74.35
(d) 52.16
(e) 74.27

Answer is : 52.16

 

Question 10: The distance between two stations A and B is 868 km. A train covers the journey from A to B at 95 km per hour and returns back to A with a uniform speed of 67 km per hour. Find the average speed of train during the whole journey.

(a) 76.87
(b) 47.55
(c) 78.58
(d) 113.24
(e) 80.15

Answer is : 78.58

 

 

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