how many multiples of 2 are there between 1 and 50 , exclusive ?
"24 multiples of 2 between 1 and 50 exclusive . from 2 * 1 upto 2 * 24 , ( 1,2 , 3,4 , . . . , 24 ) . hence , 24 multiples ! correct option is c"
add(divide(subtract(50, 1), 2), const_1)