the product of two 2-digit numbers, plus a number is 3555.(8, 1, 4, 7, 3) without repetition. what are the numbers?
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0,1,2,3,4 if repetition is not allowed at unit place
fill by three numbers 0,2 or 4 and tens place occupie other number
P=3×3=9ways
Q=odd number divisible by (3) then its sum is multiple of three
Case−I 0,1,2,3
Number of ways =3×3=9
Case−II 2,3,4
number of way=3×2=6
Total odd numbers are formed Q=9+6=15
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