1. There are 2D girls and 15 boys in a class.
(b) What is the ratio of number of
is the ratio of number of girls to the pumber of boys?
o of number of girls to the total number of students in the class?
2. Out of 30 students in a class, 6 like football
12 like cncket and remaining like tennis Find
the ratio of
(a) Number of students liking football to
mumber of students liking tennis.
(b) Number of students liking cricket to total
mumber of students
3. See the figure and find the ratio of
(a) Number of triangles to the number of circles
inside the rectangle
(b) Number of squares to all the figures inside the
rectangle
(c) Number of circles to all the figures inside the
rectangle.
Distances travelled by Hamid and Akhtar in an hour are 9 km and 12 km. Find the
ratio of speed of Hamid to the speed of Akhtar.
5. Fill in the following blanks:
15 0.10 0..
18 6 7 * 30 (Are these equivalent ratios?)
6. Find the ratio of the following:
(a) 81 to 108 (b) 98 to 63
(c) 33 km to 121 km (d) 30 minutes to 45 minutes
7. Find the ratio of the following:
(a) 30 minutes to 1.5 hours (b 40 cm to 1.5 m
(e) 55 paise to #1
(d) 500 ml. to 2 litres
8. In a year. Seema earns *1,50,000 and saves 750,000. Find the ratio of
(a) Money that Seema earns to the money she saves.
(b) Money that she saves to the money she spends.
9. There are 102 teachers in a school of 3300 students Find the ratio of the number
of teachers to the number of students.
10. In a college, out of 4320 students, 2300 are girls. Find the ratio of
(a) Number of girls to the total number of students.
(b) Number of boys to the number of girls.
Answers
Answer:girls=20
boys=15
total=35
a)ratio=girls/boys=20/15=4:3
b)ratio=girls/total=20/35=4:7.
Step-by-step explanation:
Answer:
2. a) 6 : 12
1 : 2 (common number is 6t)
b) 12 : 30
2 : 5 (Common number is 6)
3 rd question, picture should have been posted for providing the answer
4) Formula :
Speed = Distance travelled in Km÷ Time in hours
Speed of Hamid = 9 km/hour
Speed of Akhtar = 12 km/hour
Ratio of speed of Hamid to Akhtar
9 km /hour : 12 km/hour
9 : 12
3 : 4 (common factor is 3)
5 th question not clearly typed.
6) a) 81 to 108
81 : 108 (common factor 9)
9 : 12 (common factor 3)
3 : 4
b) 98 : 63 (common factor 7)
14 : 9
c) 33 km : 121 Km
33 : 121 (km is common|)
d) 30 minutes to 45 minutes (minute is the common unit here)
30 : 45 (15 is a common factor)
2 : 3
3 : 11 (common factor 11)
7) a) 30 min to 1.5 hrs.
convert one of the units so that both the sides will have same unit
1.5 hrs = 90 minutes
30 : 90 ( minute is a common unit)
`1: 3 (30 is common)
b) 40 cm to 1.5 m
40 cm : 150 cm
40 : 150 (10 is common)
4 : 15
c) 55 paise : Rs. 1
55 p : 100 p
55 :100
11 : 20
d) 500 ml toi 2 litres
500 ml :2000 ml
500 ; 2000
1 : 4 (500 is common)
8) Money earned is not typed correctly
9) 102 : 3300
34 : 1100 ( 3 is common)
17 : 550 (2 is common)
10)
a) 2300 : 4320
230 : 432 ( 0 is common on both the sides)
115 : 216 ( 2 is common)
b) 2020 : 2300
202 : 230 ( 0 is common)
101 : 115 (2 is common)