in how mant ways can 7 different books be arranged on ashelf ? in how many ways three particular books are alwats together
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7 different books can be arranged in
(7!) ways = 5040 ways.
3 particular books are always together in
7C3 ways
= 35 ways.
I HOPE THAT THIS HELPS YOU.
7 different books can be arranged in
(7!) ways = 5040 ways.
3 particular books are always together in
7C3 ways
= 35 ways.
I HOPE THAT THIS HELPS YOU.
Harshitsonu:
sir it is 21ways
how? i want to know. i will make the answer correct.
i got it
second answer is wrong??
it is correct sir
okay.
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