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Line graph
Directions (01-05): Study the following information carefully and answer the questions given below.
The given line graph shows the number of rivers and lakes in five different continents.
1) What is the ratio of the number of lakes in Asia and Africa together to the number of rivers in Africa and Australia together?
A.15:16
B.16:17
C.17:18
D.18:19
E.19:20
2) What is the average number of lakes in all the continents together?
A.1040
B.1060
C.1080
D.1050
E.1020
3) The number of lakes in Europe is approximately what percent of the number of rivers in the same continent?
A.92.85%
B.94.75%
C.96.89%
D.98.79%
E.101.24%
4) What is the difference between the number of lakes in Antarctica and Asia together and the number of rivers in Australia and Europe together?
A.100
B.150
C.200
D.250
E.300
5) The number of Rivers in Antarctica is what percent of the number of rivers in all the continents together?
A.20%
B.18%
C.15%
D.25%
E.22%
Boat and stream
6) The difference between the speed of a car increased by 25% and the usual speed of the car decreased by 30% is 44 kmph. Find the usual speed of the car?
A.60 kmph
B.80 kmph
C.100 kmph
D.70 kmph
E.90 kmph
Pipes and cistern
7) A tank is normally filled in 25 hours but takes 5 hours longer to fill because of the leak in its bottom. If the tank is full, then how many hours will the leak empty the tank?
A.120 hours
B.140 hours
C.180 hours
D.150 hours
E.100 hours
Ratio and proportion
8) Ratio of the number of lakes in Tamilnadu and Kerala is 3:5. The number of lakes in Kerala is 120 more than the number of lakes in Tamilnadu. If the number of rivers in Karnataka is 45% more than the number of lakes in Tamilnadu, then find the number of Lakes in Karnataka?
A.261
B.245
C.278
D.283
E.Cannot be determined
Percentage
9) The price of wheat increased by 20% and a family reduced the consumption of that wheat by 10 kg such that their expenditure remained same. What is their initial consumption of the wheat?
A.40 kg
B.50 kg
C.60 kg
D.80 kg
E.30 kg
Number system
10) Find the least four-digit number which is exactly divisible by 32.
A.1124
B.1132
C.1064
D.1032
E.1024
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Answers :
1) Answer: D
Required ratio = (1100 + 700):(800 + 1100)
= 1800:1900
= 18:19
2) Answer: B
Required average = (1100 + 700 + 1300 + 1200 + 1000)/5
= 5300/5
= 1060
3) Answer: A
Required percentage = 1300/1400 * 100 = 92.85%
4) Answer: C
Required difference = (1100 + 1400) – (1200 + 1100)
= 2500- 2300
= 200
5) Answer: D
Required percentage = 1500/(1200 + 800 + 1400 + 1500 + 1100) * 100
= (1500/6000) * 100
= 25%
6) Answer: B
Usual speed of the car = x
x * 125/100 – x * 70/100 = 44
55x = 4400
x = 80 kmph
7) Answer: D
1/25 – 1/x = 1/30
1/x = 1/25 – 1/30
1/x = 1/150
8) Answer: E
Number of lakes in Tamilnadu = 3x
Number of lakes in Kerala = 5x
5x – 3x = 120
x = 60
Number of lakes in Tamilnadu = 3 * 60 = 180
Number of rivers in Karnataka = 145/100 * 180 = 261
Number of lakes in Karnataka = y
Data inadequate
9) Answer: C
Price of wheat = Rs.x per kg
Consume of wheat = y kg
Expenditure = Rs.xy
xy = 120/100 * x * (y – 10)
y = 6/5 * (y – 10)
y = 60
10) Answer: E
The least four-digit number is 1000
Dividing 1000 by 32 we get remainder = 8
Required answer = 1000 +(32-8) = 1024
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