QuestionA man can row a boat at a speed of 20 km/hr in still water. If the speed of the stream is 5 km/hr, in what time he can row a distance of 75 km downstream?Typemultiple_choiceOption1.5 hoursincorrectOption2 hoursincorrectOption2.5 hoursincorrectOption3 hourscorrectSolution:- Speed of boat = ...

QuestionA boat covers 800 meters in 600 seconds against the stream and returns downstream in 5 minutes. What is the speed of the boat in still water?Typemultiple_choiceOption1 m/sincorrectOption1.5 m/sincorrectOption2 m/scorrectOption2.5 m/sincorrect

QuestionA man swims 12 km downstream and 10 km upstream. If he takes 2 hours each time, what is the speed of the stream?Typemultiple_choiceOption1 km/hrincorrectOption0.5 km/hrcorrectOption1.5 km/hrincorrectOption0.7 km/hrincorrectSolution Speed downstream =  Distance/time = 12/2 = 6 km/hr ...

QuestionA man rows downstream at 20 km/hr and rows upstream at 15 km/hr. At what speed he can row in still water?Typemultiple_choiceOption17.5 km/hrcorrectOption18 km/hrincorrectOption20.5 km/hrincorrectOption22 km/hrincorrectSolution Apply formula: Speed in still water 1/2 (speed ...

QuestionIf it was Wednesday on March 1, 2006, which day was it on March 1, 2002?Typemultiple_choiceOptionTuesdayincorrectOptionFridaycorrectOptionMondayincorrectOptionSundayincorrectSolutionTotal number of odd days between the years 2002 and 2006 = (2006 - 2002) + 1 = 5 odd days. The year 2004 is ...

QuestionIt was Saturday on January 1, 2005. Find the day of the week on January 1, 2010.Typemultiple_choiceOptionTuesdayincorrectOptionFridaycorrectOptionWednesdayincorrectOptionSundayincorrectSolutionOn December 31, 2004, it was Friday. Number of odd days from the year 2005 to the year 2009 = ...

QuestionThe day on 5th April of a year will be the same day on 5th of which month of the same year?Typemultiple_choiceOption5th JulycorrectOption5th AugustincorrectOption5th JuneincorrectOption5th OctoberincorrectSolutionApril & July for all years have the same ...

QuestionHow many days are there in y weeks y days?Typemultiple_choiceOption8ycorrectOption8y2incorrectOption16yincorrectOption21yincorrectSolutionThere are 7 days in a week, so y weeks will contain 7y days. ∴The required number of days = 7y + y days = 8y days

QuestionWhich of the following years is not a leap year?Typemultiple_choiceOption800incorrectOption700correctOption1600incorrectOption2000incorrectSolutionA century divisible by 400 is a leap year. The years 800, 1600 and 2000 are divisible by 400, so they are leap years. The year 700 is not ...

QuestionWhat was the day of the week on June 17, 1991?Typemultiple_choiceOptionTuesdayincorrectOptionWednesdayincorrectOptionFridayincorrectOptionMondaycorrectSolutionJune 17, 1991 = (1990 years + period from 01.01.1991 to 17.06.91) ⇒Odd days in 1600 years = 0 ⇒Odd days in the next 300 years = 15 ...

QuestionToday is Wednesday, after 68 days, it will beTypemultiple_choiceOptionFridayincorrectOptionSundayincorrectOptionMondaycorrectOptionThursdayincorrectSolutionEach day of a week is repeated after 7 days, so after 70 days, it will be Wednesday. Therefore, after 68 days, it will be Monday.

QuestionOn February 5, 1998, it was Thursday. The day of the week on February 5, 1997, wasTypemultiple_choiceOptionWednesdaycorrectOptionMondayincorrectOptionFridayincorrectOptionSundayincorrectSolution1997 was an ordinary year, it had 1 odd day. So, the day on February 5, 1998, would be one day ...