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Machine A can complete a target in 10 days. Machine B can complete the same in 20 days. Within how many days both machines complete target together?

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Question added by Khan Sohal khan , Associate , State Street Syntel Services Pvt Ltd.
Date Posted: 2014/09/24
Waris Misbah
by Waris Misbah , Manager , Araamis/HUED

Machine A’s time =1 target/10 days

Machine B’s time =1target /20 days

Both together =1/x days 

Solve for x. 

1/10 +1/20 =1/x 

3/20=1/x 

 

x =20/3

 

Both Machines will complete the target in6 days  8 hours

Khan Sohal khan
by Khan Sohal khan , Associate , State Street Syntel Services Pvt Ltd.

exect20/3 days

VENKITARAMAN KRISHNA MOORTHY VRINDAVAN
by VENKITARAMAN KRISHNA MOORTHY VRINDAVAN , Project Execution Manager & Accounts Manager , ALI INTERNATIONAL TRADING EST.

6.66 Days  i.e  7  Days  (Machine A6.66% of the task and Machine B3.33% of the task)

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