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

Let the initial population in 1950 be 100.
Since the population doubles every 10 years, the population growth is as follows:

• 1960 → 100 × 2 = 200
• 1970 → 200 × 2 = 400
• 1980 → 400 × 2 = 800

Total increase in population = 800 - 100 = 700
Percentage increase = (700 / 100) × 100 = 700%.

Explanation

To find the original price of the shirt, let's denote the original price as x. Since the price increased by 20%, the new price is 120% of the original price, or 1.2x.

Given that the new price is Rs. 480, we can set up the equation:

1.2x = 480

To solve for x, divide both sides by 1.2:

x = 480 / 1.2

x = 400

So, the original price of the shirt is 400.

Explanation

(85/100) * X + 24 = X
3X = 480
X = 160

Explanation

= [ (1000 - 8000) / 8000 ] x 100

= [ 2000 / 8000 ] x 1000

= 0. 25 x 100

= 25 %

***********Second Solution ************

10000-8000=2000
2000 divided by 8000 multiplied by 100= 25 %
25 %  is the ans

Explanation

40 percent * 75 

(40:100)* 75 

(40* 75):100 

3000:100 = 30

ND-5-09--023

Explanation

Given condition:

40% of X is 190 more than 20% of 650

Mathematically,

(40/100) × X = (20/100) × 650 + 190

0.4X = 130 + 190

0.4X = 320

X = 320 / 0.4

X = 800

Explanation

Let the cost price of the dog be Rs. X

∴ the cost price of the cat = Rs. (6500 – X)

The man sold the dog at a gain of 20%

∴ Gain in selling the dog = 20% of X = 0.2X

Also, the man sold the cat at a loss of 10%

∴ loss in selling the cat = 10% of (6500 – X) = 0.1 × (6500 – X) = 650 – 0.1X

He gained 2% in the overall.

∴ Gain in overall transaction = 2% of 6500 = 130

∴ 130 = 0.2X – (650 – 0.1X)

0.3X = 130 + 650 = 780

X = 780/0.3 = 2600

Explanation

30% of 50 can be written as 30% × 50

= 30/100 × 50

= 15

10% of 15

=10 x 15/100

=1.5

Explanation

To find the number of games won, calculate 40% of 160:

40% of 160 = 0.4 × 160 = 64

Games lost = Total games - Games won

= 160 - 64

= 96

The team won 64 games and lost 96 games.