Question

6. Pie chart drawn in Fig. 15.20 depicts the number of
students of classes VII to X of a school. Read it and
answer the following questions, if there are 720
students in these four classes.
720

(a) How many students are in class X?

(b) How many students are more in class VII than in
class VIII?

(c) Find the ratio of the students of class IX to that of
class X.

•Just solve part a) and b)

•Part b) 's answer is 30 and c's answer is 5:4​

Answer 1

Answer:

There are 120 students in class X

Step-by-step explanation:

Let x be the common multiple

60x + 75x + 105x + 120x = 720

Therefore, 360x = 720

x = 720/ 360

x = 2

The no. of students in class X = 60x

= 60 x 2

= 120