why is OR and And may be chained together

Answer 1

say you need apples or bananas heavier than 1 kg
if ( ( fruit.isBanana() || fruit.isApple()) && fruit.weight>=1000 //grams) {
eat();
}
this way you wont be eating a 2Kg tomato just because it's heavier than 1kg

Answer 2

Thanks

Answer 3

c++ recursion how did we get 120 while fact 5 result count from back 5*4*3*2*1?