Puzzle.. Chinku, Dinku, Pinku and Tinku.

[tigershark]

This is a story of four boys - Chinku, Dinku, Pinku and Tinku.

One day all of them decide to save their money in a bank(Joint Account). They select a bank called “Lena Bank”

The bank's specialty is: In every month the money gets doubled.

In 2nd month, Chinku withdraws 100-Rs from bank.
In 3rd month, Dinku withdraws 100-Rs from bank.
In 4th month, Pinku withdraws 100-Rs from bank.

In 5th month, Tinku withdraws 100-Rs from bank.

Then their balance in the bank becomes zero.
How much amount had the boys put in the bank?

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[CopyCat]

Rs. 93.75, plain algebra

[Expert]

Rs. 93.75, Plain Algebra

[mayank]

Chinku, Dinku, Pinku and Tinku sa pucho.

[CopyCat]

The boys should have put in Rs. 93.75 in the first month.
Am I right

[princysharma]

Same answer.. Rs. 93.75...
And I know its correct.