JODHA AKBAR FUN CLUB - BRAIN TEASERS & PUZZLES !!! - Page 25

Originally posted by: harrybird

You are right ! 👏 👏 👏

The open rooms are square numbers (1, 4, 9,16, 36...etc )

Because these are the numbers divisible by odd number of numbers

They will be changed by odd number of soldiers leaving the door open in the end ! 😃

Originally posted by: Sandhya.A

Yup! But i had to sar-patofy before i zeroed in on the perfect square fact. That except for perfect squares, all other numbers had even number of factors and hence remain closed.

Once that was done, it was the simplest calcultion.😃 AND it can be extended to any number of doors and solved in minutes.😃

Originally posted by: Sandhya.A

Yup! But i had to sar-patofy before i zeroed in on the perfect square fact. That except for perfect squares, all other numbers had even number of factors and hence remain closed.

Once that was done, it was the simplest calcultion.😃 AND it can be extended to any number of doors and solved in minutes.😃

Originally posted by: harrybird

Originally posted by: Sandhya.A

😕

That was AFTER the perfect squares factor was arrived at. 😳

Originally posted by: Sandhya.A

Here is a really really simple school grade sum that needs only simple Mathematics.

A girl 90 cms tall walks away from a lamp post which is 3.6 metres high. She walks at the rate of 1.2m/sec. What will be the length of her shadow after 4 seconds?

Of course the 'mokkai' twist would be zero as the bulb of the lamp post was not on. But here the bulb is on, evening time and the shadow IS cast.