Question

If A is a subset of B, it is denoted by A $\subseteq$ B, when all the elements in A are also in B. If N means natural numbers, W whole numbers, I integers, Q rational number and R is real numbers then which of the options is correct:

• A. $N\subseteq W\subseteq I\subseteq Q\subseteq R$
• B. $W\subseteq N\subseteq I\subseteq Q\subseteq R$
• C. $Q\subseteq N\subseteq I\subseteq R\subseteq W$
• D. $I\subseteq R\subseteq N\subseteq Q\subseteq W$

Answer 1

The correct option is A $N\subseteq W\subseteq I\subseteq Q\subseteq R$

Since all natural numbers $N$ are whole numbers, $N$ $\subseteq$ $W$ (read "N" is a subset of W").

Also, all whole numbers are integers. W $\subseteq$ I.

Here is the complete picture:
$N$ $\subseteq$ $W$ $\subseteq$ $I$ $\subseteq$ $Q$ $\subseteq$ $R$