Explanation

To evaluate this expression, we need to follow the order of operations (PEMDAS):

• Divide 100 by 50: 100 ÷ 50 = 2
• Multiply 2 by 2: 2 × 2 = 4

So, the correct answer is: 4

Explanation

Since the student who left weighed 45 kgs, the total weight of all 60 students (including the student who left) is 59x + 45.

When the student left, the average weight of the remaining 59 students increased by 200g (or 0.2 kgs), so we can set up the equation:

59x + 45 = 60(x - 0.2)

Simplifying the equation, we get:

59x + 45 = 60x - 12

Solving for x, we get:

x = 57

So, the correct answer is: 57

Explanation

Number of tiles on one side of the room = 21 tiles.

Total tiles = B21×4= 84.

Since 4 tiles at each corner are shared by both rows, subtract these: 84−4= 80 tiles.

Explanation

28+6= 34

34+6= 40

40+6= 46

46+6= 52

52+6= 58

Explanation

Explanation

Ratio of oranges to peaches to strawberries = 2:3:4

If there are 8 oranges, we can set up an equation based on the ratio:

Number of oranges = 2x = 8

To find the value of x, divide both sides by 2:

x = 8 ÷ 2

x = 4

Now that we know x, we can find the number of peaches and strawberries:

Number of peaches = 3x = 3(4) = 12

Number of strawberries = 4x = 4(4) = 16

Total number of fruit items = Number of oranges + Number of peaches + Number of strawberries

= 8 + 12 + 16

= 36

So, there are 36 fruit items in the basket.

Explanation

Total amount =1000

Total parts of amount = 2+3 = 5

One part is + 1000/5 = 200

So Rabil amount part = 2 x 200 = 400

Explanation

One square kilometer (km²) is equal to 1,000,000 square meters (m²).

1 km² = 1,000 meters x 1,000 meters = 1,000,000 m²

Explanation

Total Weight Increased = 2.5 x 8 = 20kgs

Wait of Man how replaced= 56kgs

New man weight= 56+20 = 76kgs

Explanation

To find the total number of tiles required, we need to convert the floor dimensions from feet to inches and then divide the total area by the area of a single tile.

Floor dimensions:

5 feet = 5 x 12 = 60 inches (length)

4 feet = 4 x 12 = 48 inches (width)

Total area = length x width = 60 x 48 = 2880 square inches

Tile dimension:

10 square inches

Now, divide the total area by the tile area:

2880 ÷ 10 = 288

So, 288 tiles of dimension 10 square inches are required to cover the floor.