Husband borrowed Rs 250 from wife.

After a few days he again borrowed Rs 250

 

Seeing some money in husband’s purse ,she asked husband to return the money.

 

When asked how much, wife said that he owes her Rs 4100.

 

On request, below is working given by wife : 

1)   Rs       2    5    0

2)   Rs       2    5    0

Total         4  10    0

 

Husband is still finding the school where she learned Maths.

 

Later husband gave her Rs 400 back and asked how much balance he has to pay back.

 

She wrote :

1.     Rs     4 1 0 0

2)     Rs     4 0 0 0  -

Balance       1 0 0 

Husband gave Rs 100 back.

 

Both lived happy ever after.  Only maths died….