Advertisements
Advertisements
प्रश्न
55 cows can graze a field in 16 days. How many cows will graze the same field in 10 days?
Advertisements
उत्तर
Let x be the number of cows that can graze the field in 10 days .
| Number of days | 16 | 10 |
| Number of cows | 55 | x |
\[\text{ Since the number of cows and the number of days taken by them to graze the field are in inverse variation, we have } : \]
\[16 \times 55 = 10 \times x\]
\[ \Rightarrow x = \frac{16 \times 55}{10}\]
\[ = 88\]
\[ \therefore \text{ The required number of cows is 88 } \]
APPEARS IN
संबंधित प्रश्न
A school has 8 periods a day each of 45 minutes duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the same?
Which of the following quantities vary inversely as other?
Journey (x km) undertaken by a car and the petrol (y litres) consumed by it.
If x and y vary inversely as other and x = 3 when y = 8, find y when x = 4 .
16 taps can fill a petrol tank in 18 minutes. The time taken for 9 taps to fill the same tank will be _________ minutes
A toy company requires 36 machines to produce car toys in 54 days. How many machines would be required to produce the same number of car toys in 81 days?
Which quantities in the previous question vary inversely with each other?
Two quantities are said to vary ______ with each other if an increase in one causes a decrease in the other in such a manner that the product of their corresponding values remains constant.
If x varies inversely as y and x = 20 when y = 600, find y when x = 400.
If x varies inversely as y and y = 60 when x = 1.5. Find x. when y = 4.5.
If a and b vary inversely to 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 |
