Explanation

The average $x$ of ten positive numbers is:

$$x = frac{text{Sum of the numbers}}{10}.$$

If each number is increased by 10%, the new sum of the numbers becomes:

$$text{New sum} = 1.1 times (text{Original sum}).$$

The new average is:

$$text{New average} = frac{text{New sum}}{10} = frac{1.1 times (text{Original sum})}{10} = 1.1 times x.$$

This shows that the average $x$ also increases by 10%.

Explanation

The spider is physically on the surface of the ceiling

The preposition "on" is used to indicate that something is in contact with and supported by a surface.

Explanation

Explanation

= 3/100

= 0.03

Explanation

Explanation

Explanation

To convert numbers from decimal to binary

The given decimal number is divided repeatedly by 2 and the remainders are noted down till we get 0 as the final quotient.

Explanation

Explanation

= 30/ 100 (3300)

= 990

Explanation

To solve the problem, let us assume the total number of boys is $B$ and the total number of girls is $G$. According to the problem:

• $frac{1}{3}$ of the boys are present, so the number of boys present is $frac{B}{3}$
  
• $frac{1}{2}$ of the girls are present, so the number of girls present is $frac{G}{2}$.

The total number of students present is given as:

B​/3+G​/2=Total students present.

Step 1: Check if additional information is provided

• The problem does not give the total number of boys ($B$) or girls ($G$), nor a relationship between $B$ and $G$.
• Without this, we cannot calculate the total number of students present.

Step 2: Conclusion

Since no additional information about $B$ and $G$ is given, the correct answer is:

(D) Data inadequate.