TNPSC Quantitative Aptitude - Chain Rule
Exam Duration: 45 Mins Total Questions : 30
If the price of 6 toys is Rs.264.37, what will be the approximate price of 5 toys
- (a)
Rs.140
- (b)
Rs.100
- (c)
Rs.200
- (d)
Rs.220
- (e)
Rs.240
An industrial loom weaves 0.128 metres of cloth every second.Approximately,how many seconds will it take for the loom to weave 25 metres of cloth?
- (a)
178
- (b)
195
- (c)
204
- (d)
488
A man completes \(5 \over 8\) of a job in 10 days.At this rate ,how many more days will it take him to finish the job ?
- (a)
5
- (b)
6
- (c)
7
- (d)
\(7{ 1\over 2}\)
36 men can complete a piece of work in 18 days.In how many days will 27 men complete the same work?
- (a)
12
- (b)
18
- (c)
22
- (d)
24
- (e)
None of these
In a camp,there is a meal for 120 men or 200 children.If 150 children have taken the meal,how many men will be catered to with thew remaining meal?
- (a)
20
- (b)
30
- (c)
40
- (d)
50
In a dairy farm,40 cows eat 40 bags of husk in 40 days.In how many days one cow will eat one bag of husk?
- (a)
1
- (b)
\(1\over40\)
- (c)
40
- (d)
80
12 men working 8 hours per day complete a piece of work in 10 days.To complete the same work in 8 days ,working 15 hours a day,the number of men required,is:
- (a)
4
- (b)
5
- (c)
6
- (d)
8
10 men, working 6 hours a day can complete a work in 18 days.How many hours a day must 15 men work to complete the same work?
- (a)
6
- (b)
10
- (c)
12
- (d)
15
39 persons can repair a road in 12 days, working 5 hours a day.In how many days will 30 persons,working 6 hours a day,complete the work ?
- (a)
10
- (b)
13
- (c)
14
- (d)
15
If 8 men can reap 80 hectares in 24 days,then how many hectares can 36 men reap in 30 days ?
- (a)
350
- (b)
400
- (c)
425
- (d)
450
If 5 men or 9 women can do a piece of work on 19 days,then in how many days will 3 men and 6 women do the same work ?
- (a)
12
- (b)
15
- (c)
18
- (d)
21
30 labourers, working 7 hours a day can finish a piece of work in 18 days.If the labourers work 6 hours a day ,then the number of labourers to finish the same piece of work in 30 days ,will be:
- (a)
15
- (b)
21
- (c)
22
- (d)
25
If 7 spider make 7 webs in 7 days ,then 1 spider will make 1 web in how many days?
- (a)
1
- (b)
\(7\over 2\)
- (c)
7
- (d)
49
If 18 pumps can raise 2170 tonnes of water in 10 days,working 7 hours a day; in how many days will 16 pumps raise 1736 tonnes of water,working 9 hours a day?
- (a)
6
- (b)
7
- (c)
8
- (d)
9
If 80 lamps can be lighted 5 hours per day for 30 days for Rs.21.25,then the number of lamps,which can be lighted 4 hours daily for 30 days ,for Rs.76.50, is :
- (a)
100
- (b)
120
- (c)
150
- (d)
160
400 persons ,working 9 hours per day complete \(1\over4 \)th of the work in 10 days .The munber of additional persons,working 8 hours per day,required to complete the remaining work in 20 days,is:
- (a)
675
- (b)
275
- (c)
225
- (d)
250
20 men complete one-third of a piece of work in 20 days .How many more men should be employed to finish the rest of the work in 25 more days?
- (a)
10
- (b)
12
- (c)
15
- (d)
20
If \(3\over5\) of a cistern is filled in 1 minute ,how many more time will be required to fill the rest of it?
- (a)
30 sec
- (b)
40 sec
- (c)
36 sec
- (d)
24 sec
If x men , working x hours per day,can do x units of work in x days,then y men ,wprking y hours per day would be able to complete how many units of work in y days?
- (a)
\(x^{2}\over y^{3}\)
- (b)
\(x^{3}\over y^{2}\)
- (c)
\(y^{2}\over x^{3}\)
- (d)
\( y^{3}\over x^{2}\)
A rope makes 70 rounds of the circumference of a cylinder whose radius of the base is 14 cm .How many times can it go round a cylinder with radius 20 cm?
- (a)
40
- (b)
49
- (c)
100
- (d)
None fo these
If 5 enginees consume 6 metric tonnes of coal when each is running 9 hours a day,how many metric tonnes of coal will be needed ofr 8 engines, each running 10 hours a day, it being given that 3 engines of the former type consume as much as 4 engines of the latter type?
- (a)
\(3{1\over8}\)
- (b)
8
- (c)
\(8{8\over9}\)
- (d)
\(6{12\over25}\)
If a certain number of workmen can do a piece of work in 25 hours,in how many hours will another set of an equal number of men,do a piece of work,twice as great,supposing that 2 men of the first set can do as mush work in an hour ,as 3 men of the second set do in an hour?
- (a)
60
- (b)
75
- (c)
90
- (d)
105
Some persons can do a piece of work in 12 days.Two times the number of such persons will do half of that work in:
- (a)
6 days
- (b)
4 days
- (c)
3 days
- (d)
12 days
A certain number of men can finish a piece of work in 100 days.If, there were 10 men less it would take 10 days more for the work to be finished.How many men were there originally?
- (a)
75
- (b)
82
- (c)
100
- (d)
110
In a camp,95 men had provisions for 200 days.After 5 days, 30 men left the camp.For how many days will the remaining food last now?
- (a)
180
- (b)
285
- (c)
\(139{16\over19}\)
- (d)
None of these
A garrison had provisions for a certain number of days .After 10 days, \(1\over5\) of the men desert and it is found that the provisions will now last just as long as before .How long was that?
- (a)
15 days
- (b)
15 days
- (c)
35 days
- (d)
50 days
15 men take 21 days of 8 hours each to do a piece of work .How many days of 6 hours each would 21 women take,if 3 women do as much work as 2 men?
- (a)
18
- (b)
20
- (c)
25
- (d)
30
A contractor undertook to do a certain piece of work in 9 days .He employed certain number of men,but 6 of them being absent from the very first day,the rest could finish the work in 15 days .The number of men originally employed were:
- (a)
12
- (b)
15
- (c)
18
- (d)
24
A contractor undertakes to da piece of work in 40 days .He engages 100 men at the begining and 100 more after 35 days and completes the work in stipulated time. If he had not engaged the additional men,how many days behind schedule would it be finished?
- (a)
3
- (b)
5
- (c)
6
- (d)
9
12 men and 18 boys, working \(7{1\over2}\) hours a day,can do a piece of work in 60 days .If a man works equal to 2 boys,then how many boys will be required to help 21 men to do twice the work in 50 days,working 9 hours a day?
- (a)
30
- (b)
42
- (c)
48
- (d)
90