Alisha works thrice as fast as Sita. If Alisha can complete a work in 36 minutes, how long will it take to complete the work when both Alisha and Sita work together? *
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Answer:
27 MINUTES
Step-by-step explanation:
TIME TAKEN BY ALISHA=36 MINUTES
GIVEN, ALISHA WORKS 3 TIMES FASTER THAN SITA
SO,
TIME TAKEN BY SITA=36*3
=108 MINUTES
TIME TAKEN WHEN ALISHA AND SITA WORKS TOGETHER=(1/36)+(1/108)
LCM OF 36 AND 108=108
(1/36) + (1/108)
(3+1)/108
4/108
=1/27
THEREFORE,27 MINUTES
I HOPE YOU UNDERSTOOD THE QUESTION
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