Question:Speed of a boat in standing water is `9` kmph and the speed of the stream is `1.5` kmph. A man rows to a place at a distance of `10.5` km and comes back to the starting point. The total time taken by him is : 

A `16 hours` 
B `18 hours` 
C `20 hours` 
D `24 hours` 

+ Answer
D 

+ Explanation
Speed upstream 

`= 7.5 kmph,` speed downstream 

`= 10.5 kmph`

:. Total time taken 

`= (105/7.5 + 105/10.5) hrs`

`= 24 hours.`

+ Report

Irin Moni

Editor, VCampus

Your Name

Your Email

Type of Report
Spelling MistakeIncorrect AnswerGrammar MistakeContent MissingImproper Text FormatInsufficient AnswerDuplicate QuestionImproper Sentence StructureImproper Equation/FormulaOther

Description