In a class test, the number of students passed in vartous subjects are given below.

In the class of 100 students, the number of students passed in English is 46, in Maths is 46 and in Commerce is 58. The number who passed in English and Maths is 16, Maths and commerce is 24 and English and commerce is 26, and the number who passed in all subjects is 7. Find the number of the students who failed in all subjects.

Read the following information carefully and answer the questions given below- 1000 students appeared in an examination Out of which 275 students passed in physics, 320 students passed in chemistry and 350 students passed in mathematics. 84 students passed in both chemistry and mathematics 60 students passed in both physics and mathematics, 50 students passed in both physics and chemistry and 34 students passed in all the three subjects. What is the number of students who passed in at least two subjects ?

Out of 180 students in a class 7 students failed in all the three subjects viz. Physics, Chemistry, Maths only 144 students pass in only one subject and 21 students pass in only two subjects. How many students passed in at most two subjects but atleast in one subject?

There are 100 students in a class. In the examination, 50 of them failed in Mathematics, 45 failed in Physics, 40 failed in Biology and 32 failed in exactly two of the three subjects. Only one student passed in all the subjects. Then, the number of students failing in all the three subjects is

In a class, 20% students read mathematics,16% read physics and 10% read both the subjects. If there are 50 students in the class, then the number of students in the class who read either mathematics or physics is

In Class XI of a certain school, there are 30 students in a Mathematics class and 20 students in Biolog class. Find the number of students which are in Mathematics class or in Biology class in the following cases: (i) Two classes are conducted at the same time. (ii) Two classes are condcuted at different time and 5 students study both the subject