1.find the capacity of rectangular tone in liters..

Length 5.5 Width 3.5 height 3.6

Height 2.7 Length 4.75 width 3.5

2.Find total surface area of solid cube of volume:

3.A man earn $1200 and spends $450 per month. Find ratio of
(a) his income to his expenditure
(b) his savings to his income.

4. A car uses 40 lites of petrol to travel 340 km. how far can it travel if it has only 32 liters of petrol?

5. A pile of 108 identical book has a mass of 30 kg
Find
(a) The mass of 150 books and
(b) the number of books that has a mass of 20 kg

6. At scouts' camp there is sufficient food to last 72 scouts for 6 days if 18 scouts do not turn up for the camp, how much longer can the food last for the other scouts?

1.find the capacity of rectangular tone? in liters.

If you mean the volume of a rectangular solid, then (since you didn't specify, I will assume feet)

V = Lwh
L = 5.5, w = 3.5, h = 3.6
V = (5.5)(3.5)(3.6)
V = 69.3 cubic feet

To convert to liters
1 ft = 12 in
1 in = 2.54 cm
1000 cubic cm = 1 liter

1 ft * 12 in * 2.54 cm = 30.48 cm/ft
(30.48 cm/ft)^3 = 28316.85 cm^3/ft^3

Volume in liters = (vol. in ft^3 * 28316.85 cm^3/ft^3)/1000 L/cm^3

(69.3 ft^3 * 28316.85) = 1,962,358/1000 = 1962.358 liters

You can do the 2nd one.

2.Find total surface area of solid cube of volume: What cube?

3.A man earn $1200 and spends $450 per month. Find ratio of
(a) his income to his expenditure
Ratio of 1200:450 = 1200/450 = 8:3

(b) his savings to his income.
$1200 - $450 = $750 saving (assuming he saves the difference)
Ratio of 750:1200 = 750/1200 = 5:8

4. A car uses 40 lites of petrol to travel 340 km. how far can it travel if it has only 32 liters of petrol?

Set up a ratio,
340/40 = x/32
Cross multiply to solve

5. A pile of 108 identical book has a mass of 30 kg
a) The mass of 150 books
Set up a ratio,
108/30 = 150/x
Cross multiply to solve

(b) the number of books that has a mass of 20 kg
Set up a ratio,
108/30 = x/20
Cross multiply to solve

6. At scouts' camp there is sufficient food to last 72 scouts for 6 days if 18 scouts do not turn up for the camp, how much longer can the food last for the other scouts?

Set up a ratio,
72 - 18 = 54
72/6 = 54/x
Cross multiply to solve

40

---- X 32
340

1. To find the capacity of a rectangular tank in liters, you need to multiply the length, width, and height of the tank. In this case, you have two rectangular tanks:

a) For the first tank with a length of 5.5, width of 3.5, and height of 3.6, you can calculate the capacity using the formula: Capacity = Length x Width x Height. Therefore, Capacity = 5.5 x 3.5 x 3.6 = 68.67 liters.

b) For the second tank with a length of 4.75, width of 3.5, and height of 2.7, you can calculate the capacity using the same formula: Capacity = Length x Width x Height. Therefore, Capacity = 4.75 x 3.5 x 2.7 = 45.64 liters.

Therefore, the capacity of the rectangular tanks are 68.67 liters and 45.64 liters, respectively.

2. To find the total surface area of a solid cube, you need the volume of the cube. The volume of a cube is calculated by multiplying the length of one side three times. So, if you have the volume of the cube, you can find its total surface area.

In this case, you are given a certain volume, but the side length of the cube is not provided. Without the side length, it is not possible to find the total surface area. To find the side length, you need to take the cube root of the volume. Once you have the side length, you can then find the total surface area by calculating the area of each face (there are 6 faces) and summing them up.

3. To find the ratio of a person's income to their expenditure, you divide the income by the expenditure. In this case, the person earns $1200 and spends $450 per month.

a) The ratio of his income to his expenditure is: Income / Expenditure = $1200 / $450 = 2.67:1 (rounded to two decimal places).

b) To find the ratio of his savings to his income, subtract the expenditure from the income and divide it by the income: (Income - Expenditure) / Income = ($1200 - $450) / $1200 = 0.625 or 62.5% (rounded to two decimal places).

Therefore, the ratio of his savings to his income is approximately 0.625 or 62.5%.

4. To find how far a car can travel with a certain amount of petrol, you need to know the fuel consumption or the mileage of the car. In this case, you are given the fuel consumption of the car.

The car uses 40 liters of petrol to travel 340 km. Therefore, the car's mileage is: Mileage = Distance / Fuel Consumption = 340 km / 40 liters = 8.5 km/liter.

To find how far the car can travel with 32 liters of petrol, multiply the fuel capacity by the car's mileage: Distance = Fuel Capacity x Mileage = 32 liters x 8.5 km/liter = 272 km.

Therefore, the car can travel approximately 272 km with 32 liters of petrol.

5. To find the mass of 150 books, you need to find the mass of each book and then multiply it by the number of books.

a) The pile of 108 identical books has a mass of 30 kg. Therefore, the mass of each book is: Mass per Book = Total Mass / Number of Books = 30 kg / 108 = 0.2778 kg/book.

To find the mass of 150 books, multiply the mass per book by the number of books: Mass of 150 Books = Mass per Book x Number of Books = 0.2778 kg/book x 150 = 41.67 kg.

Therefore, the mass of 150 books is approximately 41.67 kg.

b) To find the number of books that have a mass of 20 kg, divide the total mass by the mass per book: Number of Books = Total Mass / Mass per Book = 20 kg / 0.2778 kg/book = 72 books.

Therefore, there are 72 books that have a mass of 20 kg.

6. At the scouts' camp, there is sufficient food to last 72 scouts for 6 days. If 18 scouts do not turn up for the camp, you need to calculate how much longer the food can last for the remaining scouts.

First, find the food consumption rate per scout per day: Food Consumption Rate per Scout per Day = Duration / Number of Scouts = 6 days / 72 scouts = 0.0833 days/scout.

Next, calculate the total food consumption per day for all the scouts, including the ones who did not turn up: Total Food Consumption per Day = Food Consumption Rate per Scout per Day x Total Number of Scouts.

With 72 scouts planned and 18 not turning up, the total number of scouts is 72 - 18 = 54.

Total Food Consumption per Day = 0.0833 days/scout x 54 scouts = 4.5 days.

Therefore, if 18 scouts do not turn up, the food can last for an additional 4.5 days for the remaining scouts.