# Aptitude - Aptitude-Time And Works

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Kim can do a work in 3 days while David can do the same work in 2 days. Both of them finish the work together and get Rs.150. What is the share of Kim?

• a
• b
• c
• d

Kim\'s wages : David\'s wages    = Kim\'s 1 day\'s work : David\'s 1 day\'s work
= 1/3 : 1/2
= 2 : 3
Kim\'s share    = Rs.(2/5×150)
=Rs.60.

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by tanya to do the same piece of work is?

• a
• b
• c
• d

Ratio of times taken by Sakshi and Tanya=125:100
= 5 : 4.
Suppose Tanya takes x days to do the work.
5 : 4 ::20 : x
x<=> (4×20/5)
<=> 16 days.

A man can do a piece of work in 5 days, but with the help pf his son, he can do it in 3 days. In what time can the son do it alone?

• a
• b
• c
• d