A. 3 pm
B. 2 pm
C. 1:00 pm
D. 11 am

Work done by P in 1 hour = 1/8
Work done by Q in 1 hour = 1/10
Work done by R in 1 hour = 1/12
Work done by P,Q and R in 1 hour = 1/8 + 1/10 + 1/12 = 37/120
Work done by Q and R in 1 hour = 1/10 + 1/12 = 22/120 = 11/60
From 9 am to 11 am, all the machines were operating.
Ie, they all operated for 2 hours and work completed = 2 × (37/120) = 37/60
Pending work = 1- 37/60 = 23/60
Hours taken by Q an R to complete the pending work = (23/60) / (11/60) = 23/11
which is approximately equal to 2
Hence the work will be completed approximately 2 hours after 11 am ; ie around 1 pm



Basic Maths Mcqs
Basic Maths Mcqs for Preparation
Mathematics Mcqs
Mathematics Mcqs, Maths Mcqs for Preparation

Mathematics Mcqs - Maths Mcqs are very important for every test. prepare for NTS, FPSC, PPSC, SPSC, CSS, PMS Test Preparation. and all other testing services. Most of the test syllabus contain Mathematics test portion. Here you will find most important Mathematics Mcqs. here these Mcqs will help you getting good marks in this Section. Here you will find most important Mcqs of Mathematics from Basic to Advance. some of the most important sub categories are: Average, Percentage, Problem on Ages, Time and Distance, HCF and LCM, Logarithms, Discount, Interest, Ratio & Proportion, Decimal Fraction and other.

MATHEMATICS MCQS
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2. Average Mcqs 18. Boats and Streams
3. Compound Interest 19. Areas
4. Height and Distance Mcqs 20. Discount Mcqs
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6. Mixtures and Allegations 22. Mensuration
7. Partnership 23. Odd Man Out Series Mcqs
8. Pipes and Cisterns 24. Volumes
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10. Problems on L.C.M and H.C.F 26. Problems on Numbers
11. Profit and Loss Mcqs 27. Quadratic Equations
12. Races and Games 28. Ratio and Proportion
13. Simple Equations 29. Simplification and Approximation
14. Stocks and Shares Mcqs 30. Time & Distance Mcqs
15. Time and Work Mcqs 31. Volume and Surface Area Mcqs
16. Percentage Mcqs 32. Math Solutions
Time and Work Mcqs
Time and Work Mcqs calculations for Mathematics Preparation with detailed explanation.

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