The ratio of 6 books to 30 books is

1

(a)

5 : 1

(b)

2 : 3

(c)

1 : 5

(d)

2: 5

Mathematics textbook for Class VI has 320 pages. The chapter 'Symmetry' runs from page 261 to page 272. The ratio of the number of pages of this chapter to the total number of pages of the book is

1

(a)

11 : 320

(b)

3: 40

(c)

3: 80

(d)

272 : 320

Ifa bus travels 160 km in 4 h and a train travels 320 km in 5 h at uniform speeds, then the ratio of the distances travelled by them in one hour is

1

(a)

1:2

(b)

4:5

(c)

5:8

(d)

8:5

In a school library, the ratio of Mathematics books to Science books is same as the ratio of Science books to Hindi books. If there are 450 books of Science and 300 books of Hindi, then find the number of books in Mathematics

1

(a)

720

(b)

675

(c)

300

(d)

450

There are 30 boys and 20 girls in a class. The ratio of the number of girls to the number of boys is

1

(a)

2:3

(b)

3:2

(c)

2:5

(d)

3:5

See the figure and fill in the blanks.

The ratio of the number of rectangles to the circles is __________

1

(a)

2:3

The cost of 4 pens is Rs. 40. The cost of 11 pens is ____________

1

(a)

Rs.110

Maya can walk 6 km in 2 h. In 3 h, she can walk ______________

1

(a)

9 Km

A ratio expressed in lowest form has no common factor other than ______________ in its terms.

1

(a)

1

Ratio of 5 paise to 25 paise is the same as the ratio of 20 paise to ______________

1

(a)

100

16 : 24 : : 20 : 30

1

(a) False

(b) True

40 persons:200 persons=Rs.15:Rs.75

1

(a) False

(b) True

If 10: 30 :: 40 : x, then the value of x is 120.

1

(a) False

(b) True

The ratio of 150 cm to 1 m is 1 : 1.5.

1

(a) True

(b) False

The ratio 4 : 16 is in its lowest form.

1

(a) True

(b) False

In a class, there are 40 boys and 80 girls. What is ratio of the number of boys to the number of girls?

2

(a)

Convert the ratio 20 : 35 in its simplest form.

2

(a)

Find the ratio of the following.
98 to 63

2

(a)

Find the value of x, if 16 : 24 : : x : 30.

2

(a)

If I spent Rs.126 in 3 weeks. How much do I spend in a year?

2

(a)

1. Find two equivalent ratio of 3: 7.

   2

   (a)

2. Can you think of some more examples where you have to divide a number of things in some ratio? Frame three such examples and ask your friends to solve them.
   Two employees donated Rs. 1000 in National Draught Fund. The ratio of the contributions made by both is 5 : 3. Find their respective contributions.

   2

   (a)

1. In a class, there are 20 boys and 40 girls. What is the ratio of the number of boys to the number of girls?

   3

   (a)

2. Saurabh takes 15 min to reach school from his houseand Sachin takes one hour to reach school from his house. Find the ratio of the time taken by Saurabh to the time taken by Sachin.

   3

   (a)

1. Check whether the given ratios are equal, i.e. they are in proportion. If yes, then write them in the proper form. 1 : 5 and 3 : 15

   5

   (a)

2. Check whether the given ratios are equal, i.e. they are in proportion. If yes, then write them in the proper form. 15: 45 and 5 : 25

   5

   (a)

1. The temperature dropped 15 degree celsius in the last 30 days. If the rate of temperature drop remains the same, how many degrees will the temperature drop in the next 10 days?

   5

   (a)

2. Which pair of ratios are equal and why?
   (i) \(\frac{2}{3},\frac{4}{6}\)
   (ii) \(\frac{8}{4},\frac{2}{1}\)
   (iii) \(\frac{4}{5},\frac{12}{20}\)

   5

   (a)

1. There are 20 girls and 15 boys in a class.
   (a) What is the ratio of number of girls to the number of boys?
   (b) What is the ratio of number of girls to the total number of students in the class?

   5

   (a)

2. In a year, Seema earns Rs. 150000 and saves Rs.50000. Find the ratio of
   (a) money that Seema earns to the money she saves.
   (b) money that she saves to the money she spends.

   5

   (a)

1. Determine, if the following ratios form a proportion.Also, write the middle term and extreme terms, where the ratios form a proportion.
   (a) 25 cm : 1 m and Rs.40 : Rs.160
   (b) 39 L : 65 L and 6 bottles: 10 bottles
   (e) 2 kg: 80 kg and 25 g: 625 g
   (d) 200mL : 2.5 L and Rs.4 : Rs.50

   5

   (a)

2. Reena earns Rs. 90000 and save Rs.30000. Find the ratio of the money she earns to the money she saves. Mention the value you depict from this.

   5

   (a)