Advertisements
Advertisements
प्रश्न
Suneeta types 1080 words in one hour. What is her GWAM (gross words a minute rate)?
Advertisements
उत्तर
| Number of words | 1080 | x |
| Time (in minute) | 60 | 1 |
\[\text{ Therefore, it is a direct variation .} \]
\[1080: x = 60: 1\]
\[ \Rightarrow \frac{1080}{x} = \frac{60}{1}\]
\[ \text{ Applying cross muliplication, we get: } \]
\[x = \frac{1080 \times 1}{60}\]
\[ = 18\]
\[\text{ Thus, her GWAM will be 18 } .\]
APPEARS IN
संबंधित प्रश्न
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 length of the shadow cast by another pole 10 m 50 cm high.
Which of the following quantities vary directly with each other?
(i) Number of articles (x) and their price (y).
(ii) Weight of articles (x) and their cost (y).
(iii) Distance x and time y, speed remaining the same.
(iv) Wages (y) and number of hours (x) of work.
(v) Speed (x) and time (y) (distance covered remaining the same).
(vi) Area of a land (x) and its cost (y).
A, B and C working together can do a piece of work in 8 hours. A alone can do it in 20 hours and B alone can do it in 24 hours. In how many hours will C alone do the same work?
8 men can do a piece of work in 9 days. In how many days will 6 men do it?
On increasing a, b increases in such a manner that `a/b` remains ______ and positive, then a and b are said to vary directly with each other.
In direct proportion, `a_1/b_1` ______ `a_2/b_2`
It is given that l varies directly as m. Find the constant of proportion (k), when l is 6 then m is 18.
A swimming pool can be filled in 4 hours by 8 pumps of the same type. How many such pumps are required if the pool is to be filled in `2 2/3` hours?
A bowler throws a cricket ball at a speed of 120 km/h. How long does this ball take to travel a distance of 20 metres to reach the batsman?
