Advertisements
Advertisements
Question
44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12 days?
Advertisements
Solution
44 cows can graze a field = 9 days
The number of cows that can graze the same field in 1 day = 44 × 9 cows
In 12 days, the number of cows required = `(44 xx 9)/12`
= `(44 xx 3)/4`
= 11 × 3
= 33 cows
Hence, (44 – 33) i.e. 11 cows less required for graze the same field in 12 days.
APPEARS IN
RELATED QUESTIONS
In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 12 m high. If the length of the ship is 28 m, how long is the model ship?
If the cost of 93 m of a certain kind of plastic sheet is Rs 1395, then what would it cost to buy 105 m of such plastic sheet?
Reema weaves 35 baskets in 25 days. In how many days will she weave 55 baskets?
Expenditure of a family to number of members of the family are in direct proportion
A postman can sort out 738 letters in 6 hours. How many letters can be sorted in 9 hours?
Meenakshee cycles to her school at an average speed of 12 km/h and takes 20 minutes to reach her school. If she wants to reach her school in 12 minutes, her average speed should be ______.
When two quantities x and y are in ______ proportion or vary ______ they are written as `x oo y`.
If x varies directly as y, then
| x | 12 | 6 |
| y | 48 | – |
For fixed time period and rate of interest, the simple interest is directly proportional to the principal.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The quantity of rice and its cost.
