How many number foam taking 4 digit from 1 2 4 3 5 6 whereas digit 4 a

1.	How many number foam taking 4 digit from 1 2 4 3 5 6 whereas digit 4 and 5 cumpulsory
Answer» Here 4&5 digit are cumpalsary so we took 1.1.4factorial .3factorial =144 We take take that dot. =multiply Do you know the answer ithink its 4C2×4!

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