how many positive integers between 20 and 2000 ( both are inclusive ) are there such that they are multiples of 10 ?
"multiples of 10 = 20 , 30,40 - - - - - , 1990,2000 number of multiples of 10 = > 2000 - 20 / 10 + 1 = 199 answer is d"
divide(subtract(2000, 20), 10)