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How many two digit number you make by 1,2,3,4,0
16 because 0 is not in the 10th place.
vilaspaskanti
- Feb 6th, 2010
Ans:20. For tens place we can select 1 digit from 4, for units place we can select 1 from 5as there is no condition specified about digits repeating so 4C1*5C1=20(C-combination).
vineet007
- Dec 12th, 2006
ans: 16soln: digit in 10s place cannot be 0 => tens place digit can be selected in 4 waysdigit in the units place cannot be tens place digit =>units place digit can be selected in 4 ways=&g...
