+4609 Let A equal the number of four digit odd numbers. Let B equal the number of four digit multiples of 5. Find \(A+B\) .
+36916 There are 9000 numbers between 1000 and 9999 (inclusive)
Half of these are odd numbers A = 4500
1000 is divisible by 5 as is 9995 1 + (9995-1000)/5 = 1800 = B
A+B = 4500 + 1800 = 6300
+36916 There are 9000 numbers between 1000 and 9999 (inclusive)
Half of these are odd numbers A = 4500
1000 is divisible by 5 as is 9995 1 + (9995-1000)/5 = 1800 = B
A+B = 4500 + 1800 = 6300
