Miscellaneous Company Exam
Company
Numerical Ability
Profit and Loss
If a certain computer is capable of printing 4700 monthly credit card bills per hour, while a new model is capable of printing at a rate of 6800 per hour, the old model will take approximately how much longer than the new model to print 10000 bills?
Read Solution (Total 2)
-
- old model's 1 hr work = 4700
new model's 1 hr work = 6800
old model' time taken to print 10000 cards
for 1 hr -- 4700 cards
x -- 10000
x= 10000/4700 = 100/47
new model' time taken to print 10000 cards
for 1 hr -- 6800 cards
y -- 10000
y= 10000/6800 = 100/68
x= 10000/4700 = 100/47 = 2 6/47 hr
Difference is
100/47 - 100/68 = 6800 - 4700 /(47*68)
2100/3196 = 0.66 hrs => 39minutes
Old model ll take 39 minutes longer to print 10000 cards than new model
Ans : 39 mins - 10 years agoHelpfull: Yes(18) No(0)
- old machine takes 1 hour to print 4700 cards
new machine takes 1 hour to print 6800 card
for old ,if the cards are 10,000 than time taken by it will be = 10000/4700 = 100/47hr
similarly for new machine it takes time = 100/68hr
difference = 100/47-100/68 = .66 hr = 39 min. - 7 years agoHelpfull: Yes(0) No(0)
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