Advertisements
Advertisements
प्रश्न
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Area of land and its cost.
Advertisements
उत्तर
Area of land and its cost are directly proportional to each other.
E.g. Let 200 m2 land cost = ₹ 5000
Then, 400 m2 land cost = ₹ 10000
APPEARS IN
संबंधित प्रश्न
The amount of extension in an elastic string varies directly as the weight hung on it. If a weight of 150 gm produces an extension of 2.9 cm, then what weight would produce an extension of 17.4 cm?
Rohan can paint \[\frac{1}{3}\] of a painting in 6 days. How many days will he take to complete the painting?
Reema weaves 35 baskets in 25 days. In how many days will she weave 55 baskets?
The cost of 12 quintals of soyabean is 36,000 rupees. How much will 8 quintals cost?
Distance travelled by a bus and time taken are in direct proportion
A postman can sort out 738 letters in 6 hours. How many letters can be sorted in 9 hours?
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Sales Tax and the amount of the bill.
The mass of an aluminum rod varies directly with its length. If a 16 cm long rod has a mass of 192 g, find the length of the rod whose mass is 105 g.
Here is a key board of a harmonium:
- Find the ratio of white keys to black keys on the keyboard.
- What is the ratio of black keys to all keys on the given keyboard.
- This pattern of keys is repeated on larger keyboard. How many black keys would you expect to find on a keyboard with 14 such patterns.
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 go?
