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Two pipes function simultaneously the reservoir will be filled in 12 hours. One pipe fills reservoir 10 hours faster than the other. How many hours does the faster pipe take to fill the reservoir?
A. 25 hrs
B. 28 hrs
C. 20 hrs
D. 35 hrs
Pipes and Cisterns · Easy · 4 weeks ago
The average height of 50 pupils in a class is 150 cm. Five of them whose height is 146 cm, leave the class and five others whose average height is 156 cm, join. The new average height of the pupils of the class (in cm) is __________ .
A. 149
B. 151
C. 152
D. 153
Arithmetic Mcqs · Easy · 4 weeks ago
The diagonals of a rhombus are 15 cm and 20 cm. Find its area?
A. 120 sq m
B. 300 sq m
C. 150 sq m
D. 480 sq m
Areas · Easy · 4 weeks ago
If a solid sphere of radius 10 cms is moulded into 8 spherical solid balls of equal radius, then surface area of each ball (in cm2) is________?
A. 100π
B. 7π
C. 60π
D. 50π
Volumes · Easy · 4 weeks ago
A man travels a distance of 2 km by walking at a speed of 6 km/hr. He returns back at a speed of 4 km/hr. What is his average speed?
A. 4.5 kmph
B. 4.8 kmph
C. 5 kmph
D. 5.1 kmph
Time & Distance Mcqs · Easy · 4 weeks ago
p is six times as large as q. The percent that q is less than p is:________?
A. 83 1/3
B. 16 2/3
C. 90
D. 60
Percentage Mcqs · Easy · 4 weeks ago
In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?
A. 30%
B. 70%
C. 100%
D. 250%
Profit and Loss Mcqs · Easy · 4 weeks ago
Two pipes can separately fill a tank in 20 and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is full, a leak develops in the tank through which one-third of water supplied by both the pipes goes out. What is the total time taken to fill the tank?
A. 18 hrs
B. 16 hrs
C. 15 hrs
D. 12 hrs
Pipes and Cisterns · Easy · 4 weeks ago
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