if it takes 1 second to place a grain of rice on the chessboard, how long will it take to place all the grains on the chessboard for each reward?

example: Reward A had 3768 grains
Reward B had 73628 grains
Reward C had 82613 grains

what is the formula to follow ?
and how should i answer it ?

3768 grains mean 3768*1 second=3768 seconds.

Convert to hours, minutes and seconds:
3768 seconds / 60 s/min.
=62 minutes 48 seconds
= 1 hour 2 minutes 48 seconds.

The other rewards may be worked out in a similar way.

To find out how long it will take to place all the grains on the chessboard for each reward, you can use the formula:

Time = Number of grains * 1 second

Let's answer each reward one by one:

For Reward A (which has 3768 grains):
Time = 3768 * 1 second = 3768 seconds

For Reward B (which has 73628 grains):
Time = 73628 * 1 second = 73628 seconds

For Reward C (which has 82613 grains):
Time = 82613 * 1 second = 82613 seconds

So, the time it will take to place all the grains on the chessboard for each reward is:
- Reward A: 3768 seconds
- Reward B: 73628 seconds
- Reward C: 82613 seconds