Explanation

The man sells the watch for Rs. 144 and loses 10%, which means the cost price (CP) is more than the selling price (SP). Let's find the CP:

CP = SP / (1 - Loss%)

= 144 / (1 - 0.10)

= 144 / 0.90

= Rs. 160

Now, the man wants to gain 15% on the CP. Let's find the new selling price (SP'):

SP' = CP x (1 + Gain%)

= 160 x (1 + 0.15)

= 160 x 1.15

= Rs. 184

So, the correct answer is: Rs. 184

Explanation

If a ball usually sells for Rs. 120 and is sold at a 40% discount, the sale price is calculated as follows:

Discount amount = 40% × 120 = 0.40 × 120 = 48

Sale price= 120 - 48 = 72

So, the sale price of the ball is Rs. 72.

Explanation

Let's calculate the number of skilled employees (x) and unskilled employees (y):

Total salary of skilled employees = 520x

Total salary of unskilled employees = 420y

Total salary of all employees = 500(x + y)

Since the average salary is Rs. 500, we can set up the equation:

520x + 420y = 500(x + y)

Solving for x and y, we get:

x = 0.6(x + y)

So, the percentage of skilled employees is:

(0.6(x + y) / (x + y)) × 100 = 60%

Therefore, 60% of the employees in the firm are skilled.

Explanation

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

1. Calculate 4% of 400: 0.04 x 400 = 16
2. Calculate 3% of 300: 0.03 x 300 = 9
3. Multiply the results: 16 x 9 = 144

So, (4% of 400)(3% of 300) = 144.

The correct answer is 144.

Explanation

To find 12% of 1200, you can multiply 1200 by 0.12 (which is equivalent to 12%).

1200 x 0.12 = 144

So, 12% of 1200 is 144!

Explanation

To find the number of marks Umar would get out of 100, we need to calculate his percentage score and then apply it to 100 marks.

Percentage score = (45/75) x 100% = 60%

If he got 60% of 75 marks, he would get 60% of 100 marks, which is:

60% x 100 = 60

So, the correct answer is: 60

Explanation

To find the market price of the car without tax, we need to remove the 6% sales tax from the total price of Rs. 154,431.40.

Let the market price of the car be P.

Including 6% sales tax, the equation is:

P + 0.06P = 154,431.40

1.06P = 154,431.40

Now, solve for P:

P = 154,431.40/1.06

P = 145,690

So, the market price of the car without tax is Rs. 145,690.

Explanation

To find 30% of 180, you can multiply 180 by 0.3 (which is equivalent to 30%).

180 x 0.3 = 54

So, 30% of 180 is 54!

Explanation

To find the percentage discount, first, calculate the amount of the discount:

Discount = Original price - Paid price

= Rs 600,000 - Rs 570,000

= Rs 30,000

Then, divide the discount by the original price and multiply by 100:

Percentage discount = (Discount ÷ Original price) × 100

= (Rs 30,000 ÷ Rs 600,000) × 100

= 5%

So, Mr. Rehman received a 5% discount on his car purchase.

Explanation

30% of 120 rupees is calculated as follows:

0.30×120=36

The new price after the reduction is:

120−36=84 rupees.