Solve question 20
Bob is about to hang his 8 shirts in the wardrobe. He has four different styles of shirt, two identical ones of each particular style.How many different arrangements are possible if no two identical shirts are next to one another?
Q.
q18
Q5 detailed solution pls
Solve 15 pls
Q.
The work done by 2 men in a day is equal to the work done by 3 children in a day. The work done by 3 men in a day is equal to the work done by 5 women in a day. It takes 10 days for a man, a woman and a child to complete a job working together. How many days will 2 children working together take
to complete the same job?
- 15
- 17
- 34
- 30
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Q 39 and 40
Q-If 33 untrained labourers can do a work in 15 days of 12 hr each, how many trained labourers can do 50% more work in 11 days of 9 hr each? (It may be assumed that 2 trained labourers do the same amount of work done by 5 untrained labourers in the same time.)
A pedestrian left point A for a walk, going with the speed of 5 km/h. When the pedestrian was at distance of 6 km from A, a cyclist followed him from A and cycling at the speed 9 km/h higher than that of the pedestrian. When the cyclist overtook the pedestrian, they turned back and returned to A together, at the speed of 4 km/h. At what speed will the time spent by the pedestrian on his journey from A to A be least?
How to approach such questions? Any help would be appreciated.
Approach plz
A and B can finish a job in 17 days if they work on alternate days and A starts the job. A and B can finhish a job in 17 2/3 days if they work on alternate days and B starts the job. With help of C, all three can finish the job in 7 days. In how many days C alone can do the job? solu??
Solve
22nd
Q34 detailed solution pls
2^58/24 wats remainder?
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