Latest Miscellaneous Company Exam Aptitude Question SOLUTION: 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 a

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(#M40034847) MISCELLANEOUS COMPAN Numerical Ability question Apps Keep an EYE

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?

Asked In Miscellaneous Company Exam (10 years ago)

Solved Saraswathy Read Solution (2)

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Read Solution (2) :

Saraswathy  (10 years ago)

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

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Riya malaiya  (6 years ago)

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.

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