rajeev takes one hour to arrange 96 books. sanjeev takes one and a half hour to arrange the same number of books. working together, how many hours will they take to arrange 4000 books?
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get rajeev takes one hour to arrange 96 books. sanjeev takes one and a half hour to arrange the same number of books. working together, how many hours will they take to arrange 4000 books? from screen.
SOLVED: Rajeev takes one hour to arrange 96 books.Sanjeev takes one and a half hour to arrange the same number of books.Working together in how many hours they will arrange 4000 books?
VIDEO ANSWER: Okay Rajiv can do 96 books in one hour And Sanjeev can do 96 books in 1.5 hours. So what if we had two hours 96 times two is 1 92. He could arrange 1 92 books in two hours. And for CNG we would need to do 96 divided by two Plus 96.
Time and Work.pdf
View Time and Work.pdf from MATH MISC at Diablo Valley College. Time and Work Drill 1: Solutions Exercise 1 a. Answer: 24 days Explanation: Method 1: What is the work done by A in a day What is the
Time and Work.pdf - Time and Work Drill 1: Solutions...
Diablo Valley College
MATH MISC qsqidfzymydwawiwrs 15
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1Time and WorkDrill 1: SolutionsExercise 1a.Answer:24 daysExplanation:Method 1:What is the work done by A in a day= 1/40What is the work done by B in a day= 1/60What is the work done by A and B in a day= 1/40 + 1/60Time taken to complete the work= 24 daysMethod 2:Quantity of work to be done= 120 unitsWork done by A in 1 day= 3 unitsWork done by B in 1 day= 2 unitsWork done by A & B in 1 day= 5 unitsTime taken to complete the work= 24 daysb.Answer:72 daysExplanation:Method 1:Work done by Rajeev in 1 day= 1/64Work done by Rajeev and Vikram in 1 day= 1/48Work done by Vikram in 1 day= 1/192Work done by Rajeev and Vikram in 30 days= 5/8Remaining work to be completed by Vikram= 3/8Time taken by Vikram to complete the remaining work= 72 daysMethod 2:Quantity of work to be done= 192 unitsWork done by Rajeev & Vikram in 1 day= 4Work done by Rajeev in 1 day= 3 units
3Total Work = 336 LitresTime taken to fill 336 litres = 336/14 =24 minutesb.Answer:8 minutesExplanation:Total Work = 30 Litres1 min5 litres are filledFor 3 min15 litres,Therefore the remaining to be filled= 30-15= 15 litresAfter 3 min B is turned off which means‘A’alone is on.A3 l/m to fill 15 l, A will take 15/3 = 5 minsTotal time taken = 3 mins + 5 mins= 8minutesc.Answer:12minutesExplanation:Total Work = 60 lTotal time taken = 60 l/ (5l/m)=12 minutesd.Answer:60 minutesA42 min8 l/mB56 min6 l/mA + B-14 l/mA10 min3 l/mB15 min2 l/mA + B-5 l/mP10 min6 l/mQ15 min4 l/mR12 min- 5 l/mP + Q + R-6 l/m
4Explanation:A20 minsDue to leak extra 10 min (i.e.) A + B30 min[Let us take B as Leakage pipe]Total Work LCM = 60 LBy Solving we get, 3 l/m + B = 2 l/m; B = -1 l/mB can empty 1l/m.So to empty 60 litres it will take 60/1=60 minutesDRILL 3:a.Answer:16 daysExplanation:Solving by chain ruleMenDaysHours1215818?5If we solve by chain rule, men is inversely proportional to days and to hours, therefore, multiplythe data straight and equate12*15*8 = 18*X*5X = 16Therefore, it takes16 daysBy using formula(N1D1H1)/W1= (N
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Term Spring Professor DR.Matern Tags
Harshad Number, Vikram, Rajeev
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Rajeev and Sanjeev are too close friends. Rajeev's watch gains 1 minute in an hour and Sanjeev's watch loses 2 minutes in an hour. Once they set both the watches at 12: 00 noon, with my correct watch. When will the two incorrect watches of Rajeev and Sanjeev show the same time together?
Click here👆to get an answer to your question ✍️ Rajeev and Sanjeev are too close friends. Rajeev's watch gains 1 minute in an hour and Sanjeev's watch loses 2 minutes in an hour. Once they set both the watches at 12: 00 noon, with my correct watch. When will the two incorrect watches of Rajeev and Sanjeev show the same time together?
Question
Rajeev and Sanjeev are too close friends. Rajeev's watch gains 1 minute in an hour and Sanjeev's watch loses 2 minutes in an hour. Once they set both the watches at 12:00 noon, with my correct watch. When will the two incorrect watches of Rajeev and Sanjeev show the same time together?
A8 days later
B10 days later
C6 days later
Dcan't be determined
Medium Open in App Solution Verified by Toppr
Correct option is B)
Rajeev's watch gains 1 minute in an hour.So, it will gain 24 minutes per day.
Sanjeev's watch loses 2 minutes in an hour.
So, it will lose 48 minutes per day.
After 10 days Rajeev's watch gains 240 minutes i.e. 4 hours. and Sanjeev's watch loses 480 minutes i.e. 8 hours.
Hence, after 10 days their watches show the same time 4 hour.
Thus the correct answer is 10 days.
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