Which Indian cricketer is known as "Brown Bradman"?
How can i register in planetwin365?
Who, when Secretary-General of the U.N., was killed in a plane crash in Northern Rhodesia (now Zambia) in 1961?
Why was the Eiffel Tower built?
In Britain, what was the name given to the M4 Medium Tank that was produced by the US from World War II until...........
How to generate SQL query from Django Query ?
Is there any way to export data from Django Admin page ?
The Kafiyat Express train that runs between Delhi and Ajamgarh is named after the pen-name of which poet?
After which historical or mythological figure did Sri Lanka name its first satellite?
Who captained the Indian Hockey team that won the gold medal at the 1980 Summer Olympic in Moscow?
There are three keys to the three doors with different locks on them.
How many attempts would be needed to determine the exact keys for all the doors under all circumstances?
let us say A B and C locks with a b and c keys
Try two keys on A if the keys are b and c it will not open obviously the key not tried is its key a.Leave it aside.
Again try one key of the left keys b and c (not known) if it opens lock B it is b if does not it is C. so total three attempts.
It can also happen that the first key opens lock A. The second attempt, if it opens lock B it is b if it does not it is c.In this case only two attempt will determine the keys.
It can also happen that the first key does not open lock A but the second does. Keep it aside and try the remainder of b and c on B. If it opens Lock B it is b and if does not it is c. In this case also total attempts are two.
Hence 3 is the answer.
If you are only allowed to press the 1 and 0 keys on a calculator with any of the add, take, times, divide and equals keys, what is the fewest number of presses needed to make the number 9 on the calculator?
In a kitchen there are 11 cupboards some with one door and some with two. There are 15 doors altogether so how many of each cupboard are there?
Add together three numbers each time to score 45.
Each number can be used as many times as you wish.
How many different combinations are there?
5 10 15 20 25
Add together three numbers to score 20. Each number can be used as many times as you wish. How many different combinations are there?
4 6 8 10 12
Forgot Your Password?
2018 © Queryhome