Let A equal the number of four digit odd numbers. Let B equal the number of four digit multiples of 5. Find \(A+B\) .

tertre
Feb 17, 2018

#1**+1 **

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

ElectricPavlov
Feb 17, 2018

#1**+1 **

Best Answer

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

ElectricPavlov
Feb 17, 2018