how many zeroes are there at the end of the number n , if n = 150 ! + 300 ! ?
"the number of zeroes at the end of 150 ! will be less than the number of zeroes at the end of 300 ! hence it is sufficient to calculate the number of zeroes at the end of 150 ! the number of zeroes = [ 150 / 5 ] + [ 150 / 25 ] + [ 150 / 125 ] = 30 + 6 + 1 = 37 the answer is d ."
add(divide(150, add(const_4, const_1)), const_2)