Recent questions tagged marks3

0 votes

0 answers

Pattern B consists of four tiles like pattern A. Write a proportion involving red dots and blue dots in pattern A and B. Are they in direct proportion? If yes, write the constant of proportion.

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

0 votes

0 answers

A bowler throws a cricket ball at a speed of 120 km/h. How long does this ball take to travel a distance of 20 metres to reach the

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

0 votes

0 answers

The variable x is inversely proportional to y. If x increases by p%, then by what per cent will y

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

0 votes

0 answers

Here is a key board of a harmonium: (a) Find the ratio of white keys to black keys on the keyboard. (b) What is the ratio of black keys to all keys on the given keyboard. (c) This pattern of keys is repeated on larger keyboard. How many black keys would you expect to find on a keyboard with 14 such

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

0 votes

0 answers

The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas. Litres of gas 1 0.5 2 2.5 3 5 Distance (km) 15 7.5 30 37.5 45 75 Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

0 votes

0 answers

Kritika is following this recipe for bread. She realises her sister used most of sugar syrup for her breakfast. Kritika has only `1/6` cup of syrup, so she decides to make a small size of bread. How much of each ingredient shall she use? Bread recipe 1 cup quick cooking oats 2 cups bread flour `1/3` cup sugar syrup 1 tablespoon cooking oil `1 1/3` cups water 3 tablespoons yeast 1 teaspoon

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

0 votes

0 answers

Many schools have a recommended students-teacher ratio as 35:1. Next year, school expects an increase in enrolment by 280 students. How many new teachers will they have to appoint to maintain the students-teacher

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

0 votes

0 answers

Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

0 votes

0 answers

The students of Anju’s class sold posters to raise money. Anju wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs 250 for every 60 posters sold. (a) How much money would Anju’s class make for selling 102 posters? (b) Could Anju’s class raise exactly Rs 2,000? If so, how many posters would they need to sell? If not,

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

0 votes

0 answers

A cube of side 5 cm is cut into as many 1 cm cubes as possible. What is the ratio of the surface area of the original cube to that of the sum of the surface areas of the smaller

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

0 votes

0 answers

A square sheet of paper is converted into a cylinder by rolling it along its side. What is the ratio of the base radius to the side of the

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

0 votes

0 answers

How many cubic metres of earth must be dug to construct a well 7 m deep and of diameter 2.8

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

0 votes

0 answers

The radius and height of a cylinder are in the ratio 3:2 and its volume is 19,404 `cm^3`. Find its radius and

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

0 votes

0 answers

The thickness of a hollow metallic cylinder is 2 cm. It is 70 cm long with outer radius of 14 cm. Find the volume of the metal used in making the cylinder, assuming that it is open at both the ends. Also find its weight if the metal weighs 8 g per

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

0 votes

0 answers

Radius of a cylinder is r and the height is h. Find the change in the volume if the (a) height is doubled. (b) height is doubled and the radius is halved. (c) height remains same and the radius is

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

0 votes

0 answers

If the length of each edge of a cube is tripled, what will be the change in its

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

0 votes

0 answers

A carpenter makes a box which has a volume of 13,400 `cm^3`. The base has an area of 670 `cm^2`. What is the height of the

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

0 votes

0 answers

A cuboidal tin box opened at the top has dimensions `20 cm xx 16 cm xx 14 cm`. What is the total area of metal sheet required to make 10 such

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

0 votes

0 answers

Find the capacity of water tank, in litres, whose dimensions are 4.2 m, 3 m and 1.8

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

0 votes

0 answers

How many cubes each of side 0.5 cm are required to build a cube of volume 8 `cm^3`

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

Recent questions tagged marks3

Categories