When all 1000 students have finished which locker doors are open?

The principal only needs to close the lockers whose numbers are perfect squares. This means the solution is as easy as finding the square root of the highest possible perfect square within 1000. Therefore, 31 is the number of lockers the principal has to close.

Which lockers are left open after all 100 students have walked the row of lockers?

Here’s the question: “Which lockers are left open after all 100 students have walked the row of lockers?” As many of you found, the perfect square lockers (#s 1, 4, 9, 16, 25, 36, 49, 64, 81, and 100) are the only lockers left open.

What is the answer to the 100 locker riddle?

Since there aren’t very many perfect squares between 1 and 100, you can list them out – here they are: 1, 4, 9, 16, 25, 36, 49, 64, 81 and 100 – so, exactly 10 lockers will remain open.

What are bank lockers?

Getty Images. Most bank branches offer the facility of safe deposit lockers to keep valuables such as jewellery or important documents securely. An ideal place to hire a locker would be the nearest bank branch where one has an account. Size of the locker can be chosen according to need and the rent.

How many lockers are open 100?

Answer: 10 lockers are left open: Lockers #1, 4, 9, 16, 25, 36, 49, 64, 81, and 100. Each of these numbers are perfect squares. This problem is based on the factors of the locker number.

Can cash be kept in bank lockers?

Here is the official statement released by the bank: However, according to the RBI, banks are in no way responsible or liable for the content kept in the locker, even in the event of theft, burglary or similar unforeseen events. Since the cash was eaten up in the locker, the bank can’t be responsible for that.

Is bank responsible for locker theft?

The Reserve Bank of India (RBI) said in 2017 that banks would not be liable to compensate you if the contents of your locker are stolen or damaged due to a natural calamity.

What is a factors in math?

Factor, in mathematics, a number or algebraic expression that divides another number or expression evenly—i.e., with no remainder. For example, 3 and 6 are factors of 12 because 12 ÷ 3 = 4 exactly and 12 ÷ 6 = 2 exactly. The other factors of 12 are 1, 2, 4, and 12.

Do bank lockers have CCTV?

Banks have CCTV cameras which cover the entry gate of the locker room but there is no CCTV inside the locker room.

What if your bank locker is robbed?

What are the charges you pay for keeping one. Most of us like to keep our valuables in bank lockers rather than at home. The Reserve Bank of India (RBI) said in 2017 that banks would not be liable to compensate you if the contents of your locker are stolen or damaged due to a natural calamity.

Is it legal to keep cash in bank locker?

However, according to the RBI, banks are in no way responsible or liable for the content kept in the locker, even in the event of theft, burglary or similar unforeseen events. Since the cash was eaten up in the locker, the bank can’t be responsible for that.

What does a factor of 3 mean?

This is described as showing a “fall by a factor of 3”. This phrase doesn’t ring true. If a factor of 3 is a 1/3, then a fall by a third would be down to 2000. So the phrase is meant to represent a fall to a third.

What happens if bank locker is robbed?

How do you reduce by a factor of 3?

To reduce a value by a factor of 3, we could think of it as the inverse (the opposite) of an increase by a factor of 3. To increase 6 by a factor of 3, we would multiply 6 by 3 (that is, 18). The opposite of multiplication is division, and the opposite of an increase is a reduction.

What factors are common to 15 and 30?

The common factors of 15 and 30 are 1, 3, 5, and 15. The greatest common factor is 15.

Are all multiples of 12 even?

The number 12 has infinite multiples as it can be multiplied with any whole number and we have infinite whole numbers. All the multiples of 12 are even numbers.