मराठी

In which of the following case, do the quantities vary directly with each other?

Advertisements
Advertisements

प्रश्न

In which of the following case, do the quantities vary directly with each other?

पर्याय

  • x 0.5 2 8 32
    y 2 8 32 128
  • p 12 22 32 42
    q 13 23 33 43
  • r 2 5 10 25 50
    s 25 10 5 2 0.5
  • u 2 4 6 9 12
    v 18 9 6 4 3
MCQ
Advertisements

उत्तर

x 0.5 2 8 32
y 2 8 32 128

Explanation:

x = 0.5, 2, 8, 32 and y = 2, 8, 32, 128

If we multiply x with 4, we get the directly required result as same as shown in corresponding y. In this case, as the value of x increases, the value of y also increases.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Direct and Inverse Proportions - Exercise [पृष्ठ ३१६]

APPEARS IN

एनसीईआरटी एक्झांप्लर Mathematics Exemplar [English] Class 8
पाठ 10 Direct and Inverse Proportions
Exercise | Q 7. | पृष्ठ ३१६

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Suppose 2 kg of sugar contains 9 × 106 crystals.

How many sugar crystals are there in

  1. 5 kg of sugar?
  2. 1.2 kg of sugar?

A worker is paid Rs 210 for 6 days work. If his total income of the month is Rs 875, for how many days did he work?


In 10 days, the earth picks up 2.6 × 108 pounds of dust from the atmosphere. How much dust will it pick up in 45 days?


If 9 girls can prepare 135 garlands in 3 hours, how many girls are needed to prepare 270 garlands in 1 hour?

 

If C = kd

(i) what is the relation between C and d?

(ii) find k when C = 30 and d = 6 

(iii) find C, when d = 10


A truck needs 54 litres of diesel for covering a distance of 297 km. The diesel required by the truck to cover a distance of 550 km is ______.


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


Write whether the following statement vary directly, vary inversely with each other, or neither of the two.

Area of the walls of a room and the cost of white washing the walls.


Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose various shades are tried by mixing containers of blue paint and white paint. In the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them.

Mixture G Mixture H

If one container has one litre paint and the building requires 105 litres for painting, how many container of each type is required to paint the building by darkest blue shade?


Work with a partner to write at least five ratio statements about this quilt, which has white, blue, and purple squares.


How many squares of each colour will be there in 12 such quilts?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×