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
10 men working for 6 days mow an area of 5 acres. If there are 8 men working to mow 4 acres of land, how many days will it take?
  • A
    8
  • B
    2
  • C
    6
    Correct
  • D
    4
2
A family of 8 people has enough stock of rice to last for 30 days. Due to the arrival of some relatives, this food was consumed in 20 days. How many guests joined the family?
  • A
    6
  • B
    2
  • C
    8
  • D
    4
    Correct
3
A school hostel with 40 children has enough provisions for food to last for 15 days. If 10 children left the hostel, how many days will the provisions last now?
  • A
    10
  • B
    30
  • C
    50
  • D
    20
    Correct
4
If the cost of 5 pens is Rs.20, what will be the cost of 9 such pens?
  • A
    None of these
  • B
    Rs 24
  • C
    Rs 36
    Correct
  • D
    Rs 27
5
If the cost of 6 pens is Rs.30, what will be the cost of 10 such pens?
  • A
    Rs 40
  • B
    Rs 24
  • C
    None of these
  • D
    Rs 50
    Correct
6
If the cost of 8 cans is Rs.80, what will be the cost of 10 such cans?
  • A
    Rs 120
  • B
    None of these
  • C
    Rs 100
    Correct
  • D
    Rs 80
7
If the cost of 12 apples is Rs.144, what will be the cost of 5 such apples?
  • A
    Rs 60
    Correct
  • B
    Rs 40
  • C
    None of these
  • D
    Rs 50
8
If the cost of 7 oranges is Rs.28, what will be the cost of 12 such oranges?
  • A
    Rs 40
  • B
    None of these
  • C
    Rs 44
  • D
    Rs 48
    Correct
9
If the cost of 9 pencils is Rs.27, what will be the cost of 15 such pencils?
  • A
    Rs 48
  • B
    Rs 44
  • C
    Rs 45
    Correct
  • D
    None of these
10
If the cost of 11 pens is Rs.121, what will be the cost of 18 such pens?
  • A
    Rs 121
  • B
    None of these
  • C
    Rs 132
  • D
    Rs 198
    Correct
11
A milk factory can fill 240 bottles in 3 hours. How many bottles will it fill in 5 hours?
  • A
    None of these
  • B
    200
  • C
    360
  • D
    400
    Correct
12
A milk factory can fill 200 bottles in 5 hours. How many bottles will it fill in 7 hours?
  • A
    28
    Correct
  • B
    200
  • C
    360
  • D
    None of these
13
If the weight of 6 bags is 420 kg, what is the weight of 15 such bags?
  • A
    None of these
  • B
    Rs 1050
    Correct
  • C
    Rs 1440
  • D
    Rs 1080
14
If the weight of 5 bags is 400 kg, what is the weight of 18 such bags?
  • A
    None of these
  • B
    Rs 1440
    Correct
  • C
    Rs 1080
  • D
    Rs 1620
15
Raja covers a distance of 18 km in 1 hour, how much time will he need to travel a distance of 8 Km.
  • A
    25 minutes
  • B
    26.66 minutes
    Correct
  • C
    30 minutes
  • D
    None of these