Advertisements
Advertisements
Question
A loaded truck travels 14 km in 25 minutes. If the speed remains the same, how far can it travel in 5 hours?
Advertisements
Solution
Let the distance travelled by truck in 5 hours be x km.
25 minutes = `25/60` hour = `5/12` hour
| Distance (in km) | 14 | x |
| Time (in hours) | `5/12` | 5 |
⇒ `14/(5/12) = x/5`
⇒ `(14xx5xx12)/5 = x`
⇒ x = 168
∴ Distance travelled by the truck in 5 hours is 168 km.
APPEARS IN
RELATED QUESTIONS
Two mobiles cost 16,000 rupees. How much money will be required to buy 13 such mobiles?
The shadow of a pole with height of 8 m is 6 m. If the shadow of another pole measured at the same time is 30 m, find the height of the pole?
A postman can sort out 738 letters in 6 hours. How many letters can be sorted in 9 hours?
Every 3 months Tamilselvan deposits ₹ 5000 as savings in his bank account. In how many years he can save ₹ 1,50,000
If x varies directly as y, then
| x | 12 | 6 |
| y | 48 | – |
Two quantities x and y are said to vary directly with each other if for some rational number k, xy = k.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Area of the walls of a room and the cost of white washing the walls.
Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10 km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school start?
The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas.
| Litres of gas | 1 | 0.5 | 2 | 2.5 | 3 | 5 |
| Distance (km) | 15 | 7.5 | 30 | 37.5 | 45 | 75 |
Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of gas?
Kritika is following this recipe for bread. She realises her sister used most of sugar syrup for her breakfast. Kritika has only `1/6` cup of syrup, so she decides to make a small size of bread. How much of each ingredient shall she use?
Bread recipe
1 cup quick cooking oats
2 cups bread flour
`1/3` cup sugar syrup
1 tablespoon cooking oil
`1 1/3` cups water
3 tablespoons yeast
1 teaspoon salt.
