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Question 1
A sailor goes 12 km downstream in 48 minutes and returns in 1 hour 20 minutes. The speed of the sailor in still water is:
Question 2
The two numbers are 63 and 77, HCF is 7. Find the LCM.
Question 3
Two containers have acid and water mixed respectively in the ratio 3 : 1 and 5 : 3. To get a new mixture with ratio of acid to water as 2 : 1, the two types have to be mixed in the ratio
Question 4
Volume of a cylinder is 13860 cubic cm. If circumference of its base is 132 cm, find the curved surface area of the cylinder?
Question 5
How much time will a horse take to run around a square field of side 175 m if it runs at the speed of 15 km/h?
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Oct 28BPSC
