Questions by uday

0 votes

0 answers

If two quantities x and y vary directly with each other, then ______ of their corresponding values remains

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

If 45 persons can complete a work in 20 days, then the time taken by 75 persons will be ______

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

If d varies directly as `t^2`, then we can write `dt^2` = k, where k is some

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

The cost of 27 kg of iron is Rs 1,080, what will be the cost of 120 kg of iron of the same

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A volleyball court is in a rectangular shape and its dimensions are directly proportional to the dimensions of the swimming pool given below. Find the width of the pool.

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A recipe for a particular type of muffins requires 1 cup of milk and 1.5 cups of chocolates. Riya has 7.5 cups of chocolates. If she is using the recipe as a guide, how many cups of milk will she need to prepare muffins?

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Find the area of polygon ABCDEF, if AD = 18cm, AQ = 14 cm, AP = 12 cm, AN = 8 cm, AM = 4 cm, and FM, EP, QC and BN are perpendiculars to diagonal

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A cube of side 4 cm is cut into 1 cm cubes. What is the ratio of the surface areas of the original cubes and cut-out

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

If R is the radius of the base of the hat, then the total outer surface area of the hat is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A cube of side 4 cm is painted on all its sides. If it is sliced in 1 cubic cm cubes, then number of such cubes that will have exactly two of their faces painted is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Opposite faces of a cuboid are _________ in

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Two cylinders of equal volume have heights in the ratio 1:9. The ratio of their radii is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

The surface area of a cuboid formed by joining face to face 3 cubes of side x is 3 times the surface area of a cube of side

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A cube of side 3 cm painted on all its faces, when sliced into 1 cubic centimetre cubes, will have exactly 1 cube with none of its faces

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

asked Jan 17, 2022 in 8th-maths

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

0 votes

0 answers

A wooden box (including the lid) has external dimensions 40 cm by 34 cm by 30 cm. If the wood is 1 cm thick, how many `cm^3` of wood is used in

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Below are the drawings of cross sections of two different pipes used to fill swimming pools. Figure A is a combination of 2 pipes each having a radius of 8 cm. Figure B is a pipe having a radius of 15 cm. If the force of the flow of water coming out of the pipes is the same in both the cases, which will fill the swimming pool faster?

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A birthday cake has two tiers as shown in the figure below. Find the volume of the cake.

asked Jan 17, 2022 in 8th-maths

Page:

« prev
1
...
32
33
34
35
36
37
38
...
40
next »