IBM
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Numerical Ability
Time and Work
A printer begins printing forms at 9.33 AM,at the rate of 66 forms per minute ,another printer begins at 9.50 AM ,printing 77 forms per minute .At what time will the two printers have printed the same number of forms?
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- A printer begins printing forms at 9.33 AM,at the rate of 66 forms per minute ,another printer begins at 9.50 AM ,printing 77 forms per minute .
By the time , second printer starts, 1st printer has printed 66*17 forms.
second printer will be able to fill this gap @ 77-66=11 forms per minute.
so second printer will take 17*66/11 = 102 minutes = 1 hr 42 mins.
so two printers will have printed the same number of forms after 1 hr 42 mins from 9.50 AM i.e. at 11 :32 hrs - 13 years agoHelpfull: Yes(48) No(3)
- till 9.50 1st printer will print 17*66=1122 words
then x*77=x*66 +1122
11x=1122
x=102 min after 9.50
i.e. 11.32 AM - 9 years agoHelpfull: Yes(12) No(0)
- 66*60/t = 77 *60/t+17
6t+102=7t
t = 102 i.e 1 hr42 min
ans is 11:20 Am - 11 years agoHelpfull: Yes(6) No(19)
- 164-- ans
(27*66)/11 - 8 years agoHelpfull: Yes(0) No(3)
- 66*60/t = 77 *60/t+17
6t+102=7t
t = 102 i.e 1 hr42 min
ans is 11:20 Am - 7 years agoHelpfull: Yes(0) No(1)
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