Class 8 Direct And Inverse Proportions CBSE Questions & Answers

Class 8 · Direct And Inverse Proportions

This is Mathematics Class 8 Direct and Inverse Proportions CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
If a box of sweets is divided among 24 children, they will get 5 sweets each. How many would each get, if the number of the children is reduced by 4?
  • A
    6
    Correct
  • B
    8
  • C
    4
  • D
    None of these
2
A train is moving at a uniform speed of 75 km/hour. Find the time required to cover a distance of 250 km.
  • A
    3 hours 20 minutes
    Correct
  • B
    None of these
  • C
    3 hours 40 minutes
  • D
    2 hours 20 minutes
3
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?
  • A
    21 m
    Correct
  • B
    15 m
  • C
    24 m
  • D
    18 m
4
A 5 m 60 cm high vertical pole casts a shadow 3 m 20 cm long. Find at the same time the height of a pole which casts a shadow 5m long.
  • A
    8 m 25 cm
  • B
    7 m 75 cm
  • C
    7 m 25 cm
  • D
    8 m 75 cm
    Correct
5
A factory requires 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54 days?
  • A
    47 machines
  • B
    49 machines
    Correct
  • C
    None of these
  • D
    51 machines
6
A school has 8 periods a day each of 45 minutes duration. How long would each period be, if the school has 10 periods a day, assuming the number of school hours to be the same?
  • A
    None of these
  • B
    36 minutes
    Correct
  • C
    32 minutes
  • D
    40 minutes
7
The cost of 5 metres of a particular quality of cloth is Rs 210. Find the cost of 15 metres of cloth of the same type.
  • A
    None of these
  • B
    Rs 660
  • C
    Rs 600
  • D
    Rs 630
    Correct
8
A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his cattle?
  • A
    4
    Correct
  • B
    2
  • C
    8
  • D
    6
9
The scale of a map is given as 1:30000000. Two cities are 4 cm apart on the map. Find the actual distance between them.
  • A
    1200 km
    Correct
  • B
    1000 km
  • C
    1500 km
  • D
    None of these
10
Suppose 2 kg of sugar contains \({\text{9 }} \times {\text{ 1}}0{\text{6}}\)crystals. How many sugar crystals are there in 5 kg of sugar?
  • A
    2.25 crystals
  • B
    \({\text{1}}{0^{\text{7}}}\)crystals
  • C
    \({\text{2}}.{\text{25 }} \times {\text{ 1}}{0^{\text{7}}}\)crystals
    Correct
  • D
    None of these
11
A loaded truck travels 14 km in 25 minutes. If the speed remains the same, how far can it travel in 5 hours?
  • A
    168 km
    Correct
  • B
    166 km
  • C
    162 km
  • D
    156 km
12
A car takes 2 hours to reach a destination by travelling at the speed of 60 km/h. How long will it take when the car travels at the speed of 80 km/h?
  • A
    1 hour
  • B
    None of these
  • C
    2 hours
  • D
    1.5 hours
    Correct
13
A factory requires 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 49 days?
  • A
    50 machines
  • B
    54 machines
    Correct
  • C
    56 machines
  • D
    58 machines
14
If 9 kg of rice costs Rs 166.50, how much rice can be purchased for Rs 259?
  • A
    16 kg
  • B
    12 kg
  • C
    14 kg
    Correct
  • D
    10 kg
15
If a car covers 80 km in 5 litres of petrol, how much distance will it cover in 13 litres of petrol?
  • A
    None of these
  • B
    204 km
  • C
    208 km
    Correct
  • D
    206 km