Question

There are two numbers whose sum is 48. One number is one-third of the other. What are the two numbers? A 10 and 38 B. 12 and 36 C. 14 and 34 D. 20 and 28​

Answer 1

Answer:

The reason why we only see ~118 elements is because we only see the ones stable enough to observe. Anything common in nature would need to have a half-life comparable to the age of the earth (or be produced as a decay product of something else that does).

Answer 2

Let x , y be the given numbers .

such that ,

x = 3y and,

x + y = 48

so ,

y = 12 and,

x = 3y = 3(12) = 36