A boat moves upstream at the rate of 1 km in 20 minutes and down strea – McqOptions

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1.	A boat moves upstream at the rate of 1 km in 20 minutes and down stream 1 km in 12 minutes. The      speed  of the current is :
A.	1 kmph
B.	2 kmph
C.	3 kmph
D.	2.5 kmph
Answer» B. 2 kmph

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