80 x 4 = 320
455
320/80 = 4
320.
32*20 320*2 8*80 160*4 10*64
320
Eight times.
320
Four times exactly !
you cant multiply 60 times something to equal 1600 its not possible but you can multiply 1 times 1600 equals 1600 2 times 800 equals 1600 4 times 400 equals 1600 5 times 320 equals 1600 8 times 200 equals 1600 10 times 160 equals 1600 16 times 100 equals 1600 20 times 80 equals 1600 25 times 64 equals 1600 32 times 50 equals 1600 40 times 40 equals 1600 50 times 32 equals 1600 64 times 25 equals 1600 80 times 20 equals 1600 100 times 16 equals 1600 160 times 10 equals 1600 200 times 8 equals 1600 320 times 5 equals 1600 400 times 4 equals 1600 800 times 2 equals 1600 1600 times 1 equals 1600 to equal 1600
first 400 is 4 times of 100 . so 80 percent of 400 is 4 times 80 which is 320. This can be done if the number is multipliable by 10.
It is 4 times 320 = 1280