Related Questions

Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
Which of the following laser types is used in a laser printer?
A Dye laser
B Semiconductor laser
C Excimer laser
D Gas laser
Who Invented Laser?
A William Friese\u00adGreene
B Arthur Fry
C Gordon Gould
D Otto von Guericke
What was the active medium used in the first working laser ever constructed?
A A diamond block
B Helium-neon gas
C A ruby rod
D Carbon dioxide gas
Working alone, pump A can empty a pool in 3 hours. Working alone, pump B can empty the same pool in 2 hours. Working together, how many minutes will it take pump A and pump B to empty the pool?
A 72
B 75
C 84
D 96
Two people were hired to plough a field for a total of Tk. 498 . They completed the job with one person working for 1.75 hours and the other working for 0.875 hours. If they split the Tk. 498 in proportion to the amount of time each spent working on the job, how much will person who worked longer receive?
A Tk 166
B Tk. 249
C Tk. 312
D Tk. 332
Of the 45 families in a locality, 25 families have working mothers and 10 families have retired individuals as members to look after the children at home. Of the families, 8 have both working mothers and retired individuals as members. How many of the families have working mothers but no retired individuals as members?
A 2
B 18
C 17
When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a
A D-slide valve
B governor
C Meyer’s expansion valve
D flywheel
Two people were hired to clear a lawn for total of Tk450. They completed the job with one person working for 1 hour 20 minutes and the other working for 40 minutes. If they split the wage in proportion to the amount of time each spent working on the job, how much did the person who worked longer receive?
A Tk.225
B Tk.300
C TK. 250
D Tk.275
The first thing that catches your eye(A) in this building(B) is the flour(C)/with laser lights(D).
A eye
B building
C flour
D lights

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