how many multiples of 4 are there between 8 and 160 ?
"it should be mentioned whether 8 and 160 are inclusive . if 8 and 160 are inclusive , then the answer is ( 160 - 8 ) / 4 + 1 = 39 . if 8 and 160 are not inclusive , then the answer is ( 156 - 12 ) / 4 + 1 = 37 . since oa is b , then we have not inclusive case ."
add(divide(subtract(160, 8), 4), const_1)