Explanation

To solve this problem, you need to use the concept of profit percentage and the formula:

Profit = Selling Price - Cost Price

Given:

Selling Price = Rs. 118

Profit = 50% of Cost Price

Let's calculate the Cost Price:

Profit = (50/100) x Cost Price

Profit = Rs. 118 - Cost Price

Substitute the profit value:

(50/100) x Cost Price = Rs. 118 - Cost Price

Simplify and solve for Cost Price:

Cost Price = Rs. 78.66

Explanation

To find the average (arithmetic mean) of a and b, we need to first solve for a and b.

Given equation: 10a + 10b = 35

Divide both sides by 10: a + b = 3.5

Since we want to find the average of a and b, we can use the fact that the average of two numbers is equal to their sum divided by 2.

So, (a + b)/2 = 3.5/2

= 1.75

Therefore, the average (arithmetic mean) of a and b is 1.75.

Explanation

In Pakistan and India, land area is measured in units such as marlas, kanal, and acres:

• 1 acre = 160 marlas
• 1 kanal = 20 marlas
• 1 acre = 8 kanals

Explanation

Explanation

The price of 10 chairs = The price of 4 tables

Concept:

Linear equation of two variable = A equation is said to be linear equation in two variable if it is written in the form of ax + by + c = 0 Where, x and y are variables and a, b, and c are the integers

Calculation:

Let us assume the cost price of a chair be X and cost price of a table be Y

⇒ According to the question

⇒ 10X = 4Y ----(1)

⇒ 15X + 2Y = 4000 ----(2)

⇒ By equation (1) and (2)

⇒ 15X + 5X = 4000

⇒ X = 200 and Y = 500

⇒ The price of 12 chairs and 3 tables = (12 × 200) + (500 × 3) = 2400 + 1500 = 3900

∴ The required result will be 3900.

Explanation

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

Evaluate the expressions inside the parentheses:

    - 11 - 2 = 9

Replace the expressions with their values:

    - (8(9) - 5(9))/3

Multiply the numbers:

    - 72 - 45 = 27

Divide by 3:

    - 27/3 = 9

So, the correct answer is: 9

Last update 0n 21-07-2026 by NA

Explanation

The other numbers in the list are all prime numbers, whereas 81 is a composite number (3^4).

Explanation

To find the value of X, substitute Y = 5 into the equation Y = 3X + 12:

5 = 3X + 12

Subtract 12 from both sides:

-7 = 3X

Divide both sides by 3:

-7/3 = X

So, the value of X is -7/3!

Explanation

Because you observe the pattern

60–59=1

59–57=2

57–54=3

54–50=4

50–45=5

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ND11-12-2022

Explanation

Area of the rectangular floor = Length x Width = 18 feet x 10 feet = 180 square feet

Since there are 9 square feet in a square yard, the area in square yards is:

180 square feet / 9 = 20 square yards

The cost of carpeting = Area x Rate = 20 square yards x x Rs/Sq Yard

So, the cost of carpeting is: 20x