General Questions
Practice and master this topic with our carefully crafted questions.
Let the required number of bottles be x.
More weavers, More mats (Direct Proportion)
More days, More mats (Direct Proportion)
| Wavers | 4 | : | 8 |  |
:: 4 : x |
| Days | 4 | : | 8 |
4 x 4 x x = 8 x 8 x 4
 x = |
(8 x 8 x 4) |
| (4 x 4) |
x = 16.
There is a meal for 200 children. 150 children have taken the meal.
Remaining meal is to be catered to 50 children.
Now, 200 children 
120 men.
| 50 children |
 |
120 | x 50 |  |
= 30 men. |
| 200 |
Let the height of the building x metres.
Less lengthy shadow, Less in the height (Direct Proportion)
40.25 : 28.75 :: 17.5 : x 
40.25 x x = 28.75 x 17.5
| x = | 28.75 x 17.5 |
| 40.25 |
x = 12.5
Let the required number of days be x.
Less men, More days (Indirect Proportion)
27 : 36 :: 18 : x 27 x x = 36 x 18
| x = |
36 x 18 |
| 27 |
x = 24.
Le the required time be x seconds.
More metres, More time (Direct Proportion)
0.128 : 25 :: 1 : x 0.128x = 25 x 1
| x = | 25 | = | 25 x 1000 |
| 0.128 | 128 |
x = 195.31.
Required time = 195 sec (approximately).