ANSWERS -HURDLE 05 : TIME AND WORK

Ans 1.
A's 1 day work =1/10
B's 1 day work=1/30
A and B together can do the work in 1 day=1/10+1/30 =4 / 30
Therefore,both can finish the whole work in 1/(4/30)=7.5 days


Ans 2. A's 1 day work=1/15
in 10 days A will do 10/15 or 2/3 or work, so B will do 1/3 of work.


Ans 3.A's I day work =1/20
B's 1 day work=1/30
In 2 days they will finish 1/20+1/30=5/60 = 1/12
A&B can finish the whole work in 2/(1/12)= 24 days


Ans 4. A's 1 day work=1/25
A& B `s 1 day work=1/20
B's 1 day work=1/20-1/25=5/500
So in 3 days he finish 1/100. (UrPercentile.com)
In (300-2 = 298) days he will finish the whole work. As last 2 days off need not be counted.

Ans 5. A's 1 day work=1/30
A&B's 1 day work=1/20
B's 1 day work =1/20-1/30 =1/60
B can finish the whole work in 1/(1/60)=60 days


Ans 6. A's 1 week work=1/15
B's 1 week work= 1/12
C's 1 week work=1/20. (UrPercentile.com)
A,B&C's 1 week work= 1/15+1/12+1/20 =12/60
A,B &C can finish the whole work in 1/(12/60)=60/12=5 weeks = 35 days

Ans 7. A's 1 min work=1/12
B's 1 min work=1/8
C's 1min work=1/24
A,B&C's 1 min work =1/12+1/8+1/24 =6/24
A,B&C can finish the whole work in 1/(6/24)=24/6=4 mins.

Ans 8 to Ans 11 :

A's 1 day work= 1/20
B's 1 day work=1/60
A,B&C's 1 day work=1/10

Ans 8. C's 1 day work= 1/10-(1/20+1/60) =1/10-4/60 = 2/60=1/30
C's whole work can be completed in 1/(1/30)=30days

Ans9. C's 1 day work =1/30
A's 1 day work= 1/20
A& C's 1 day work=1/30+1/20=5/60
A&C can finish the whole work in 1/(5/60)=12days

Ans10. C& B's 1 day work=1/60+1/30 =3/60
C&B can finish the whole work in 1/(3/60)=20 days

Ans 11. A&B's 1 day work=1/20+1/60 =4/60
A& B can finish the whole work in 1/(4/60)=60/4=15 days

Ans 12 ~15:

A's 1 day work= 1/105
B's 1 day work=1/210
A,B&C's 1 day work=1/60


Ans 12. C's 1 day work= 1/60-(1/105+1/210)
=1/60-3/210
= 1/60-1/70=1/420
C's whole work can be completed in 1/(1/420)=420days

Ans 13. C's 1 day work =1/420
A's 1 day work= 1/105
A& C's 1 day work=1/105+1/420=5/420
A&C can finish the whole work in 1/(5/420)=84days

Ans 14. C& B's 1 day work=1/210+1/420 =3/420
C&B can finish the whole work in 1/(3/420)=140 days

Ans 15. A&B's 1 day work=1/105+1/210 =3/210
A& B can finish the whole work in 1/(3/210)=210/3=70 Days

Ans16 . The most appropriate answer is 2. Option 3 is close but the passage does not specify that they agreed on sharing information about the clients in particular. It says the discussions were on creating an information sharing mechanism among themselves to ensure that such undercutting of interest rates does not harm the industry.
Those who have ticked option 1 or 4 need to work hard on RC as all through the passage Bankers claims that they were not
discussing about fixing a minimum lending rate of interest.