The sum of all the four digit distinct numbers that can be formed with the digits 1,2,2, and 3 is
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a
22264
b
122664
c
26664
d
122234
answer is C.
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Detailed Solution
1 at unit place ⇒ number of such numbers is 3!2!=32 at unit place ⇒ number of such numbers is 3!=63 at unit place ⇒ number of such numbers is 3!2!=3Hence the sum of the digits in the unit place is 3×1+6×2+3×3=24The sum of all 4 digit numbers is 1111×24=26664