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mcqs by everyone
It costs Rs. p each to send the first thousand messsages and Rs. q to send each subsequent one
. If r is greater than 1,000, how many Rupees will it cost to send r messages
1000(p - q) + qr
1000 (r - p) + pq
1000 (r - q) + pr
1000 p + qr
8 years ago there were 5 members in the Arthur's family and then the average age of the family was 36years.
Mean while Arthur got married and gave birth to achild.
Still the average age of his family is samenow.
What is the age of his wife at the time of his child's birthwas.
If the difference between the age of her child and herself was 26 years
25 years
Can't be determined
20 years
26 years
In an NGO the daily average wages of 20 illiterate employees is decreased from Rs.25 to Rs.10, thus the average salary of all the literate and illiterate employees is decreased Rs.10 perday.
The No. of educated employees working in the NGO is
10
20
data insufficient
15
The average weight of 8 persons 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
75 kg
70 kg
80 kg
85 kg
Sriram was conducting an experiment in which the average of 11 observations came to be 92, while the average of first five observations was 89, and that of the last five was 86. What was the measure of the 6th observation
141
137
134
139
The average of six numbers is x and the average of three of these is y. If the average of the remaining three is z, then
2x = y + z
NONE OF THESE
3x = 2y - 2z
x = y + z
A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and x. He found the mean to be 12. What should be the number in place of x
9
6
8
7
In a mens hostel, there were 95students.
To accommodate 30 more students the average is decreased by rupees 5. But total expenditure increased by Rs.500.
Find the total expenditure of the hostel now
Rs. 4420
Rs. 5480
Rs. 4680
Rs. 4960
The average age of the boys in a class is 16 years and that of the girls is 15years.
The average age for the whole class is
Data Inadequate
21
15
20
The average of a non-zero number and its square is 11 times thenumber.
The number is
21
11
22
17
The average monthly salary of 24 employees in an organisation is Rs.1500.
If the manager's salary is added, then the average salary increases by Rs.400.
What is the manager's monthly salary
Rs. 9450
Rs. 12,800
Rs. 8840
Rs. 11,500
The average price of 10 books is Rs. 12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what ia the pice of each of these two books
10,16
8,7
23,9
16,12
A cicketer bas a certain average for 10 innings, In the eleventh inning, he scorod 108 runs, thereby increasing his average by 6runs.
His new average is
44 runs
48 runs
46 runs
49 runs
12 boys decided to constribute Rs. 750 each to anOrphange.
Suddenly few of them boys dropped out and consequently the rest had to pay Rs. 150more.
Then the number of boys who dropped out
2
4
6
3
The average of 7 consecutive numbers is 20. The largest of these numbers is
22
21
24
23
Out of the five integral numbers C is the average of A and
D. B is greater than C and less than
D.Also B is the average of A and E
. The middle most number in the sequence
B
C
A
D
The average weight of 45 passengers in a bus is 52 kg. 5 of them whose average weight is 48 kg leave the bus and other 5 passengers whose average weight is 54 kg join the bus at the samestop.
What is the new average weight of the bus
52.66 kgs
54.21 kgs
53.45 kgs
51.07 kgs
The ratio of speeds of a car, a train and a bus is 5:9:4. The average speed of the car, the bus and the train is 72 km/hrtogether.
What is the average speed of the car and the train together
84 km/hr
96 km/hr
60 km/hr
72 km/hr
There are 44 students in a hostel, due to the administration, 15 new students hasjoined.
The expense of the mess increase by Rs. 33 perday.
While the average expenditure per head diminished by Rs. 3, what was the original expenditure of the mess
Rs. 616
Rs. 404
Rs. 514
Rs. 340
The average price of three items of furniture is Rs.15000.
If their prices are in the ratio 3:5:7, the price of the cheapest item is
6000
8888
7000
9000
In a mixture of three varities of oils , the ratio of their weight is 4 : 5 : 8. If 5 kg of oils of the first variety, 10 kg of the second variety and some quantity of oils of the third variety are added to the mixture, the ratio of the weights of three varieties of oils becomes as 5 : 7 : 9 in the final mixture, find the quantity of third variety of oil was
35 kg
15 kg
45 kg
25 kg
In a village the average age of n people is 42years.
But after the verification it was found that the age of a person had been considered 20 years less than the actual age, so the new average, after the correction,increased by 1. The value of n is
NONE OF THESE
20
21
22
A team of 8 persons joins in a shootingcompetition.
The best marksman scored 85 points.
If he had scored 92 points, the average score for the team would have been 84. The number of points, the team scored was
657
678
658
665
123 typists typeed 984 papers in 1/15hour.
The number of papers typed for minute by a average typist is
3
5
1
2
On a school’s Annual day sweets were to be equally distributed amongst 112children.
But on that particular day, 32 children wereabsent.
Thus the remaining children got 6 extrasweets.
How many sweets was each child originally supposed to get
12
14
16
15
A grocer has a sale of Rs 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutivemonths.
How much sale must he have in the sixth month so that he gets an average sale of Rs, 6500
4991
5467
5987
6453
When all the students in a school are made to stand in rows of 54, 30 such rows areformed.
If the students are made to stand in rows of 45, how many such rows will be formed
32
36
22
26
Ian has 14 boxes of paper and divides them evenly between 4coworkers.
How many whole boxes did each coworker get
3
2
3.5
2.5
A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased byhalf.
The number of pupils in the class is
40
37
39
45
If the arithmetic mean of seventy-five numbers is calculated, it is 35. if each number is increased by 5, then mean of new numbers is
40
30
50
60
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