Explanation

You can easily calculate 18 is 75 percent of what number by using any regular calculator, simply enter 18 × 100 ÷ 75 and you will get your answer which is 24.

Explanation

To find the number, you can set up an equation:

7% of x = 42

To solve for x, you can convert the percentage to a decimal by dividing by 100:

0.07x = 42

Then, divide both sides by 0.07:

x = 42 / 0.07

x = 600

So, the number whose 7% is 42 is 600!

Explanation

Given Data:

• 15 men can manufacture 27 baskets in 1 hour (60 minutes).
• We need to find how many baskets 45 men can manufacture in 40 minutes.

Step 1: Baskets manufactured by 1 man in 1 minute

In 1 hour (60 minutes), 15 men manufacture 27 baskets.

Therefore, the number of baskets manufactured by 1 man in 1 minute is:

27 baskets/15 men×60 minutes​ =2/900

$$=0.03\text{ baskets per man per minute}.$$

Step 2: Baskets manufactured by 45 men in 40 minutes

If 1 man manufactures 0.03 baskets per minute, then 45 men will manufacture in 40 minutes:

$$45\times 40\times 0.03=54\text{ baskets}.$$

Explanation

The sum of the exterior angles of any polygon is always 360 degrees. 

As for the interior angles, the sum of all the interior angles in a polygon is equal to: (n-2) x 180

Explanation

Total weight of (36 + 44) Students,

= (36 × 40 + 44 × 35) kg

= 2980 kg

Therefore average weight of the whole class,

= 298080 kg.

Therefore average weight = 37.25 kg.

Explanation

According to the statement :

So, when the day before yesterday was Saturday,

then Wednesday will be the day on the day after tomorrow.

Explanation

The formula for the sum of interior angles of a polygon with n sides is 180(n - 2).

It comes from dividing the polygon into (n - 2) triangles, each having 180° total.

Explanation

Explanation

This is an alternating number subtraction series.

First, 2 is subtracted, then 4, then 2, and so on.

Explanation

Perimeter of Rhombus  = 2 (l +b)

                                         = 2 ( 6 +6 )

                                         = 2 (12)

                                         = 24