Class 12 CBSE Applied Maths Numerical Inequalities Case Study
Class 12 CBSE Applied Maths aims to develop an understanding of basic
mathematical and statistical tools and their
applications in the field of commerce (business/ finance/economics) and social
sciences. Topics covered in Class 12th Applied Maths includes : Numbers, Quantification and
Numerical Applications, Algebra, Calculus, Probability Distributions , Inferential Statistics, Index
Numbers and Time-based data , Financial Mathematics , Linear Programming.
Please Select
Marks obtained by Radhika in quarterly and half-yearly exams of mathematics are 60 and 70
respectively.
Based on the above information, answer the following questions:
Q(i).
Minimum marks, she should get in the annual exam to have an average of atleast
70 marks is
(a) 80
(b) 85
(c) 75
(d) 90
Solution :
Q2.
Maximum marks, she should get in the annual exam to have an average of atmost 75 marks is
(a) 85
(b) 90
(c) 95
(d) 80
Solution :
Q3.
Range of marks in annual exam, so that the average mark is atleast 60 and atmost 70 is
(a) [60, 70]
(b) [50, 80]
(c) [50,70]
(d) [60, 80]
Solution :
Q(iv).
If average of atleast 60 marks is considered pass, then minimum marks she need to score in annual
exam to pass is
(a) 60
(b) 65
(c) 70
(d) 50
Solution :
Q(v).
If she scored atleast 20 and atmost 80 marks in annual exam, then the range of average marks is
(a) [50, 70]
(b) [60, 70]
(c) [50, 60]
(d) [50, 80]
Solution :
