Karthick is 2.5 times efficient than Kumar, therefore, takes 8 days less than Kumar to complete a work. If Karthick and Kumar work on alternate days and Karthick works on the first day, then in how many days the work will be completed?
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Answer:
40 days
Step-by-step explanation:
x number of days for Karthick
y number of days for Kumar
x= y-8 y=×+8
x+y= z total number of days
×+×+8=z
2x+8=z 2×=z-8 x=z/2 - 4
z/2.5=z/2-4
z/2.5-z/2=-4
z(-0.10)= -4
z=40
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