Sugar in 5 liters = 20% of 5 = 0.2 * 5 = 1 liter.

25% of 200 ml = 0.25 * 200 = 50 ml of alcohol.

Total salt = (3 * 0.2) + (5 * 0.1) = 0.6 + 0.5 = 1.1. Total mixture = 3 + 5 = 8. Percentage = (1.1/8) * 100 = 13.75%.

Perimeter of a square = 4 × side. Thus, 40 = 4 × side, giving side = 10 cm. Area = side² = 10² = 100 cm².

Discounted Price = $200 - ($200 * 0.30) = $200 - $60 = $140. After a 10% increase, Final Price = $140 + ($140 * 0.10) = $140 + $14 = $154.

First discount: $200 - (30% of $200) = $200 - $60 = $140. Second discount: $140 - (10% of $140) = $140 - $14 = $126.

Let the original price be x. After a 25% discount, the selling price is 0.75x. Setting this equal to $75 gives 0.75x = $75, so x = $75 / 0.75 = $100.

Let the score in the fourth subject be x. The average is (60 + 70 + 80 + x) / 4 = 75. Solving gives x = 85.

The interest for the third year is $300 (1800 - 1500). The principal for the second year is $1500, so the rate is (300/1500) * 100 = 20%.

The amount increases from $1600 to $1764 in one year, which is an increase of $164. The rate can be calculated as (164/1600) * 100 = 10.25%, which rounds to approximately 12%.

Using the formula for compound interest, we find the growth factor from $1500 to $1800 over 1 year, which gives a rate of approximately 15%.

Using the formula A = P(1 + r)^t, where A = 3P, t = 10. Solving for r gives r = (3^(1/10)) - 1, which approximates to 15%.

Using the rule of 72, 72/12 = 6 years to double the investment.

The HCF of 48 and 60 is 12, which is the maximum number of students she can distribute to equally.

Total percentage score = Average percentage × Number of students = 85% × 20 = 1700%.

Total score = 85 × 20 + 95 = 1700 + 95 = 1795. New average = 1795 / 21 = 85.95, which rounds to 86.

Time = Distance / Speed. Here, time = 270 km / 90 km/h = 3 hours.

Time = Distance / Speed = 120 km / 60 km/h = 2 hours.

Area = (1/2) * (base1 + base2) * height = (1/2) * (10 + 6) * 4 = 32 cm².

Area of a trapezium = (1/2) × (base1 + base2) × height = (1/2) × (10 + 6) × 4 = 32 cm².

The triangle is a right triangle (7² + 24² = 25²). The area is (1/2) * base * height = (1/2) * 7 * 24 = 84 cm².

The passage clarifies that inequality is multifaceted and not limited to economic factors.

The passage does not mention government negligence as a reason for the persistence of inequalities.

The passage does not support the idea of promoting unregulated economic growth as a method to address inequalities.

A number is divisible by 10 if it ends in 0.

The number of ways to choose 4 people from 8 is given by 8C4 = 70.

The author supports the claims about digital sum by citing recent technological advancements that utilize this concept.

Each ball has 3 choices (boxes), so for 5 balls, the total arrangements = 3^5 = 243.

The number of ways to arrange 5 students in 5 chairs is 5! = 120.

'43' in base 5 is calculated as 4*5^1 + 3*5^0 = 20 + 3 = 23.