Advertisements
Advertisements
Question
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.
Advertisements
Solution
The number of red dots in pattern A (•) = 4
The number of blue dots in pattern A (`square`) = 2
Pattern B consists of four tiles like pattern A i.e.
Patter A × 4 = Pattern B
∴ Proportion in pattern = `2/6 = 1/3`
Now, proportion of blue dots and red dots in pattern B = `8/32 = 1/4`
APPEARS IN
RELATED QUESTIONS
Suppose 2 kg of sugar contains 9 × 106 crystals.
How many sugar crystals are there in
- 5 kg of sugar?
- 1.2 kg of sugar?
A 5 m 60 cm high vertical pole casts a shadow 3 m 20 cm long. Find at the same time the height of a pole which casts a shadow 5 m long.
A cistern can be filled by one tap in 8 hours, and by another in 4 hours. How long will it take to fill the cistern if both taps are opened together?
Two mobiles cost 16,000 rupees. How much money will be required to buy 13 such mobiles?
If the weight of 12 sheets of thick paper is 40 grams, how many sheets of the same paper would weigh 2.5 kilograms?
When the speed remains constant, the distance travelled is ______ proportional to the time.
In direct proportion, `a_1/b_1` ______ `a_2/b_2`
When two quantities are related in such a manner that, if one increases, the other also increases, then they always vary directly.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The quantity of rice and its cost.
A water tank casts a shadow 21 m long. A tree of height 9.5 m casts a shadow 8 m long at the same time. The lengths of the shadows are directly proportional to their heights. Find the height of the tank.
