There are four different letters and four different letter boxes, in how many methods these letters

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09 Nov 2020 Drop four Letters

There are four different letters and four different letter boxes, in how many methods these letters can be dropped in the boxes,
if all the four letters in a single box are not allowed:

OPtion

1) 250
2) 248
3) 256
4) 320
5) 128
6) 252
7) 224
8) 90
9) 4
10) 16

Solution

Total no. of methods without any condition = 4*4*4*4 = 256
No of methods of taking all the four letters in a box = 4
Hence required methods with given condition = 256-4 = 252

Correct Option: 6 Best Solution (0)