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IMPORTANT
Earn 100

Saket and Prakash take 7.5 days working together. However, if Saket and Prakash work individually to complete the equal amount of work, it takes them 20 days to complete the job. How long will Prakash alone take to do the job if Saket is more efficient than Prakash?

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Important Questions on Arithmetic

EASY
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IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 9
Four machines A, B, C, and D are to be used for producing 10,000 units. Machine A alone can produce 50 units in a day, B is half as efficient as A, C is as efficient as A and D is twice as efficient as A. In how many days, would the work be complete if all the four machines start working together?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 10
In an organization, regular working day is of 8h and regular week is of 5 working days. A man is paid ₹ 3.20 per hours overtime. If he has earned ₹432 in 4 weeks, what is the total number of hours he worked in those 4 weeks?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 11
Tap A fills a tank in 20 min while C empties it at one-third the rate at which A fills it. At 12:00 noon, A and C are simultaneously started and when the tank is 50% full, tap A is turned off. At what time will the tank be empty?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 12
Two pipes X and Y can fill a tank in 6h and 9h, respectively. If they are turned on alternately for one hour each starting with Y, then what is the time taken to fill the tank?
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IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 13
A 10 hectare field is reaped by 2men,3 women, and 4 boys in 10 days. If a man, a woman and a boy work in the ratio of 5:4:2, then in how much time 6 men, 4 women and 7 boys reap a 16 hectare field?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 14
Four plumbers had to repair 364 taps. At the end of 3 days working 7h per day they had repaired 168 taps. In order to speed up the work, three more plumbers were added who also worked 7h daily. If efficiency of each of the plumbers is same, how many additional days would it take to complete the task?
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IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 15
Three factories are capable of manufacturing a particular part of the bike. Each of the two factories can produce 1,00,000 parts in 15 days. The third factory can produce them $30 \%$ faster. How many days (approx.) would it take to produce a million parts with all the three working simultaneously?
MEDIUM
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IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 16
Five persons working 8h daily can complete a wall in 10 days. When they have worked for 5 and half days, five more persons are brought to work. In how many more days will the wall be complete?