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What is the sum of all the four digit numbers formed using the digits 0, 1, 2
and 3. None of the two digits should be repeated.
Read Solution (Total 4)
-
- starting with 1,2 & 3 series of no.
1230 2031 3012
1320 2013 3102 TOTAL SUM= 38664
1023 2103 3201
1032 2130 3021
1302 2310 3120
1203 2301 3210
- 12 years agoHelpfull: Yes(20) No(9)
- 38664
the method of solving such qns is already explained. - 12 years agoHelpfull: Yes(12) No(20)
- 1000*6+2000*6+3000*6=36000
100*4+200*4+300*4=2400
10*4+20*4+30*4=240
1*4+2*4+3*4=24
ans=36000+2400+240+24=38664 - 10 years agoHelpfull: Yes(9) No(1)
- There will be 3P3=18 numbers possible .We have to add and find the sum.
- 7 years agoHelpfull: Yes(0) No(3)
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