Questions by Arun

0 votes

0 answers

On increasing a, b increases in such a manner that `b/a` remains______ and positive, then a and b are said to vary directly with each

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A car is travelling 48 km in one hour. The distance travelled by the car in 12 minutes is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

An auto rickshaw takes 3 hours to cover a distance of 36 km. If its speed is increased by 4 km/h, the time taken by it to cover the same distance is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Two quantities x and y are said to vary directly with each other if for some rational number k, xy =

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Length of a side of a square and its area vary directly with each

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A contractor undertook a contract to complete a part of a stadium in 9 months with a team of 560 persons. Later on, it was required to complete the job in 5 months. How many extra persons should he employ to complete the

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

From the following table, determine if x and y are in direct proportion or not. x 3 6 15 20 30 y 12 24 45 60 120

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

If a and b vary inversely to each other, then find the values of p, q, r ; x, y, z and l, m, n. a 6 8 q 25 b 18 p 39 r

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

If a and b vary inversely to each other, then find the values of p, q, r ; x, y, z and l, m, n. a l 9 n 6 b 5 m 25 10

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school

asked Jan 17, 2022 in 8th-maths

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

0 votes

0 answers

What will be the change in the volume of a cube when its side becomes 10 times the original

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

If the area of a face of a cube is 10 `cm^2`, then the total surface area of the cube is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A cube of side 5 cm is painted on all its faces. If it is sliced into 1 cubic centimetre cubes, how many 1 cubic centimetre cubes will have exactly one of their faces

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A circle of maximum possible size is cut from a square sheet of board. Subsequently, a square of maximum possible size is cut from the resultant circle. What will be the area of the final

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Three cubes of metal whose edges are 6 cm, 8 cm and 10 cm respectively are melted to form a single cube. The edge of the new cube

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

The surface area of a cuboid formed by joining two cubes of side a face to face is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

If a cube fits exactly in a cylinder with height h, then the volume of the cube is __________ and surface area of the cube is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Total surface area of a cylinder of radius h and height r is

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

__________ surface area of room = area of 4

asked Jan 17, 2022 in 8th-maths

Page:

« prev
1
...
15
16
17
18
19
20
21
...
43
next »