Class 7 Exam  >  Class 7 Notes  >  Mathematics (Maths) Class 7  >  Class 7 Math: CBSE Past Year Paper - 7

Class 7 Math: CBSE Past Year Paper - 7 | Mathematics (Maths) Class 7 PDF Download

Download, print and study this document offline
Please wait while the PDF view is loading
 Page 1


G e n e r a l 	 I n s t r u c t i o n :
T h i s 	 q u e s t i o n 	 p a p e r 	 c o n t a i n s 	 8 	 q u e s t i o n s
A l l 	 t h e 	 q u e s t i o n s 	 a r e 	 c o m p u l s o r y .
S e c t i o n 	 A
1 . 	 I f 	 t w o 	 i n t e g e r s 	 a r e 	 o f 	 u n l i k e 	 s i g n s , 	 t h e n 	 w h a t 	 i s 	 t h e 	 s i g n 	 o f 	 t h e i r 	 p r o d u c t ?
S o l . 	 N e g a t i v e
2 . 	 W h a t 	 i s 	 t h e 	 c h a n c e 	 o f 	 y o u r 	 b e i n g 	 y o u n g e r 	 t o m o r r o w 	 t h a n 	 t o d a y ?
S o l . 	 N o 	 c h a n g e
3 . 	 S i m p l i f y : 	 ( - 8 0 3 ) 	 × 	 1 0 1 	 + 	 8 0 3 	 × 	 ( - 1 ) .
S o l . 	 ( - 8 0 3 ) 	 × 	 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 ( 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 ( 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 1 0 2
- 8 1 9 0 6
4 . 	 A 	 d i e 	 i s 	 t h r o w n 	 2 0 	 t i m e s . 	 T h e 	 n u m b e r 	 4 	 a p p e a r s 	 6 	 t i m e s . 	 W h a t 	 i s 	 t h e 	 p r o b a b i l i t y
o f 	 n o t 	 g e t t i n g 	 n u m b e r 	 4 ?
S o l . 	 P r o b a b i l i t y
P r o b a b i l i t y 	 o f 	 g e t t i n g
P r o b a b i l i t y 	 o f 	 n o t 	 g e t t i n g 	 4 	 	
= 	 0 . 7
Page 2


G e n e r a l 	 I n s t r u c t i o n :
T h i s 	 q u e s t i o n 	 p a p e r 	 c o n t a i n s 	 8 	 q u e s t i o n s
A l l 	 t h e 	 q u e s t i o n s 	 a r e 	 c o m p u l s o r y .
S e c t i o n 	 A
1 . 	 I f 	 t w o 	 i n t e g e r s 	 a r e 	 o f 	 u n l i k e 	 s i g n s , 	 t h e n 	 w h a t 	 i s 	 t h e 	 s i g n 	 o f 	 t h e i r 	 p r o d u c t ?
S o l . 	 N e g a t i v e
2 . 	 W h a t 	 i s 	 t h e 	 c h a n c e 	 o f 	 y o u r 	 b e i n g 	 y o u n g e r 	 t o m o r r o w 	 t h a n 	 t o d a y ?
S o l . 	 N o 	 c h a n g e
3 . 	 S i m p l i f y : 	 ( - 8 0 3 ) 	 × 	 1 0 1 	 + 	 8 0 3 	 × 	 ( - 1 ) .
S o l . 	 ( - 8 0 3 ) 	 × 	 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 ( 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 ( 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 1 0 2
- 8 1 9 0 6
4 . 	 A 	 d i e 	 i s 	 t h r o w n 	 2 0 	 t i m e s . 	 T h e 	 n u m b e r 	 4 	 a p p e a r s 	 6 	 t i m e s . 	 W h a t 	 i s 	 t h e 	 p r o b a b i l i t y
o f 	 n o t 	 g e t t i n g 	 n u m b e r 	 4 ?
S o l . 	 P r o b a b i l i t y
P r o b a b i l i t y 	 o f 	 g e t t i n g
P r o b a b i l i t y 	 o f 	 n o t 	 g e t t i n g 	 4 	 	
= 	 0 . 7
5 . 	 a . 	 T h e 	 m e a n 	 o f 	 1 5 	 o b s e r v a t i o n s 	 i s 	 3 8 . 2 . 	 I t 	 w a s 	 f o u n d 	 l a t e r 	 o n , 	 t h a t 	 t h e 	 n u m b e r 	 2 5 	 w a s
m i s r e a d 	 a s 	 5 2 . 	 F i n d 	 t h e 	 a c t u a l 	 m e a n .
b . 	 1 3 	 s t u d e n t s 	 w e r e 	 g i v e n 	 a 	 c r o s s w o r d 	 p u z z l e . 	 T h e 	 t i m e 	 t a k e n 	 ( i n 	 m i n u t e s ) 	 b y 	 t h e m 	 t o
c o m p l e t e 	 t h e 	 c r o s s w o r d 	 i s 	 g i v e n 	 b e l o w :
1 0 , 	 1 2 , 	 1 5 , 	 8 , 	 1 0 , 	 1 2 , 	 1 2 , 	 8 , 	 1 0 , 	 8 , 	 1 2 , 	 1 1 , 	 1 1
F i n d 	 t h e 	 m e d i a n 	 a n d 	 m o d e 	 f o r 	 t h e 	 a b o v e 	 d a t a .
S o l . 	 ( a ) 	 M e a n 	 = 	 3 8 . 2
N o . 	 o f 	 o b s e r v a t i o n 	 = 	 1 5
C o r r e c t 	 m e a n
B u t 	
C o r r e c t 	 m e a n 	 	
	 	 = 3 6 . 4
( b ) 	 A r r a n g e 	 o b s . 	 I n 	 a s c e n d i n g 	 o r d e r
8 , 	 8 , 	 8 , 	 1 0 , 	 1 0 , 	 1 0 , 	 1 1 , 	 1 1 , 	 1 2 , 	 1 2 , 	 1 2 , 	 1 5
N o . 	 o f 	 o b s e r v a t i o n 	 = 	 1 3 	 ( o d d )
M e a d i a n
= 	 1 1 	 	 M o d e 	 = 	 1 2
6 . 	 S i m p l i f y :
[ 	 - 	 4 2 	 – 	 { 	 2 4 	 ÷ ( 	 - 	 1 5 	 + 	 3 	 ) 	 + 	 ( 7 ) 	 } 	 – 	 ( 	 - 	 3 0 ) 	 ÷ 	 ( - 	 6 ) ]
S o l . 	 [ - 4 2 	 – 	 { 2 4 	 ÷ 	 ( - 1 5 	 + 	 3 ) 	 + 	 7 } 	 – ( - 3 0 ) 	 ÷ 	 ( - 	 6 ) ]
[ - 4 2 	 – 	 { 2 4 	 ÷ 	 ( - 1 2 ) 	 + 	 7 } 	 – 5 ]
[ - 4 2 	 – 	 { - 2 	 + 	 7 } 	 – 5 ]
[ - 4 2 	 – 	 { 5 } 	 – 5 ]
Page 3


G e n e r a l 	 I n s t r u c t i o n :
T h i s 	 q u e s t i o n 	 p a p e r 	 c o n t a i n s 	 8 	 q u e s t i o n s
A l l 	 t h e 	 q u e s t i o n s 	 a r e 	 c o m p u l s o r y .
S e c t i o n 	 A
1 . 	 I f 	 t w o 	 i n t e g e r s 	 a r e 	 o f 	 u n l i k e 	 s i g n s , 	 t h e n 	 w h a t 	 i s 	 t h e 	 s i g n 	 o f 	 t h e i r 	 p r o d u c t ?
S o l . 	 N e g a t i v e
2 . 	 W h a t 	 i s 	 t h e 	 c h a n c e 	 o f 	 y o u r 	 b e i n g 	 y o u n g e r 	 t o m o r r o w 	 t h a n 	 t o d a y ?
S o l . 	 N o 	 c h a n g e
3 . 	 S i m p l i f y : 	 ( - 8 0 3 ) 	 × 	 1 0 1 	 + 	 8 0 3 	 × 	 ( - 1 ) .
S o l . 	 ( - 8 0 3 ) 	 × 	 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 ( 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 ( 1 0 1 	 + 	 1 )
- 8 0 3 	 × 	 1 0 2
- 8 1 9 0 6
4 . 	 A 	 d i e 	 i s 	 t h r o w n 	 2 0 	 t i m e s . 	 T h e 	 n u m b e r 	 4 	 a p p e a r s 	 6 	 t i m e s . 	 W h a t 	 i s 	 t h e 	 p r o b a b i l i t y
o f 	 n o t 	 g e t t i n g 	 n u m b e r 	 4 ?
S o l . 	 P r o b a b i l i t y
P r o b a b i l i t y 	 o f 	 g e t t i n g
P r o b a b i l i t y 	 o f 	 n o t 	 g e t t i n g 	 4 	 	
= 	 0 . 7
5 . 	 a . 	 T h e 	 m e a n 	 o f 	 1 5 	 o b s e r v a t i o n s 	 i s 	 3 8 . 2 . 	 I t 	 w a s 	 f o u n d 	 l a t e r 	 o n , 	 t h a t 	 t h e 	 n u m b e r 	 2 5 	 w a s
m i s r e a d 	 a s 	 5 2 . 	 F i n d 	 t h e 	 a c t u a l 	 m e a n .
b . 	 1 3 	 s t u d e n t s 	 w e r e 	 g i v e n 	 a 	 c r o s s w o r d 	 p u z z l e . 	 T h e 	 t i m e 	 t a k e n 	 ( i n 	 m i n u t e s ) 	 b y 	 t h e m 	 t o
c o m p l e t e 	 t h e 	 c r o s s w o r d 	 i s 	 g i v e n 	 b e l o w :
1 0 , 	 1 2 , 	 1 5 , 	 8 , 	 1 0 , 	 1 2 , 	 1 2 , 	 8 , 	 1 0 , 	 8 , 	 1 2 , 	 1 1 , 	 1 1
F i n d 	 t h e 	 m e d i a n 	 a n d 	 m o d e 	 f o r 	 t h e 	 a b o v e 	 d a t a .
S o l . 	 ( a ) 	 M e a n 	 = 	 3 8 . 2
N o . 	 o f 	 o b s e r v a t i o n 	 = 	 1 5
C o r r e c t 	 m e a n
B u t 	
C o r r e c t 	 m e a n 	 	
	 	 = 3 6 . 4
( b ) 	 A r r a n g e 	 o b s . 	 I n 	 a s c e n d i n g 	 o r d e r
8 , 	 8 , 	 8 , 	 1 0 , 	 1 0 , 	 1 0 , 	 1 1 , 	 1 1 , 	 1 2 , 	 1 2 , 	 1 2 , 	 1 5
N o . 	 o f 	 o b s e r v a t i o n 	 = 	 1 3 	 ( o d d )
M e a d i a n
= 	 1 1 	 	 M o d e 	 = 	 1 2
6 . 	 S i m p l i f y :
[ 	 - 	 4 2 	 – 	 { 	 2 4 	 ÷ ( 	 - 	 1 5 	 + 	 3 	 ) 	 + 	 ( 7 ) 	 } 	 – 	 ( 	 - 	 3 0 ) 	 ÷ 	 ( - 	 6 ) ]
S o l . 	 [ - 4 2 	 – 	 { 2 4 	 ÷ 	 ( - 1 5 	 + 	 3 ) 	 + 	 7 } 	 – ( - 3 0 ) 	 ÷ 	 ( - 	 6 ) ]
[ - 4 2 	 – 	 { 2 4 	 ÷ 	 ( - 1 2 ) 	 + 	 7 } 	 – 5 ]
[ - 4 2 	 – 	 { - 2 	 + 	 7 } 	 – 5 ]
[ - 4 2 	 – 	 { 5 } 	 – 5 ]
[ - 4 2 	 – 	 5 	 – 	 5 ]
- 5
7 . 	 S e e i n g 	 t h e 	 p o o r 	 a n d 	 u n d e r p r i v i l e g e d 	 c h i l d r e n 	 i n 	 t h e 	 n e i g h b o u r h o o d , 	 t h e 	 r e s i d e n t s 	 o f
D w a r k a 	 d e c i d e 	 t o 	 d i s t r i b u t e 	 8 0 	 t a b l e 	 f a n s 	 d u r i n g 	 s u m m e r . 	 T h e 	 c o s t 	 o f 	 o n e 	 f a n 	 i s 	 R s 	 6 5 0 .
F i n d 	 t h e 	 t o t a l 	 c o s t 	 o f 	 f a n s 	 a n d 	 w r i t e 	 t w o 	 v a l u e s 	 t h a t 	 y o u 	 l e a r n 	 f r o m 	 i t .
S o l . 	 C o s t 	 o f 	 1 	 t a b l e 	 f a n 	 = 	 R s 	 6 5 0
C o s t 	 o f 	 8 0 	 t a b l e 	 f a n 	 = R s 	 6 5 0 	 × 	 8 0
T o t a l 	 c o s t 	 o f 	 t a b l e 	 f a n 	 = 	 	 R s 	 5 2 0 0 0
8 . 	 T h e 	 f o l l o w i n g 	 d a t a 	 s h o w s 	 t h e 	 n u m b e r 	 o f 	 c a r s 	 p r o d u c e d 	 i n 	 a 	 f a c t o r y 	 f o r 	 t h e 	 f i r s t 	 s i x
m o n t h s 	 o f 	 t h e 	 y e a r s 	 2 0 1 4 	 a n d 	 2 0 1 5 .
J a n F e b M a r c h A p r i l M a y J u n 	
2 0 1 4 8 6 0 0 9 6 0 0 7 6 0 0 4 4 0 0 3 2 0 0 8 0 0
2 0 1 5 8 6 0 0 9 4 0 0 8 0 0 0 6 4 0 0 4 0 0 0 1 2 0 0
P l o t 	 a 	 d o u b l e 	 b a r 	 g r a p h 	 u s i n g 	 t h e 	 d a t a 	 g i v e n 	 a b o v e .
S o l . 	 C o r r e c t 	 B a r 	 G r a p h
W i t h 	 s c a l e , 	 a x i s ,
Read More
76 videos|344 docs|39 tests

Top Courses for Class 7

FAQs on Class 7 Math: CBSE Past Year Paper - 7 - Mathematics (Maths) Class 7

1. What are the important topics to study in Class 7 Math for the CBSE exam?
Ans. Some important topics to study in Class 7 Math for the CBSE exam are integers, fractions and decimals, algebraic expressions, geometry, data handling, and practical geometry.
2. How can I prepare for the Class 7 Math CBSE exam effectively?
Ans. To prepare effectively for the Class 7 Math CBSE exam, you can follow these strategies: - Understand the concepts thoroughly by referring to the textbook and taking notes. - Practice solving a variety of problems from different topics. - Solve previous year question papers and sample papers to get familiar with the exam pattern and types of questions. - Seek help from your teacher or classmates if you have any doubts. - Create a study schedule and allocate dedicated time for Math practice every day.
3. Are there any online resources available for Class 7 Math CBSE exam preparation?
Ans. Yes, there are several online resources available for Class 7 Math CBSE exam preparation. You can find video lessons, interactive quizzes, practice tests, and study materials on various educational websites and learning platforms. Some popular online resources include Khan Academy, BYJU'S, Meritnation, and TopperLearning.
4. What is the marking scheme for the Class 7 Math CBSE exam?
Ans. The marking scheme for the Class 7 Math CBSE exam usually consists of two sections - theory and practical. The theory section carries a maximum of 80 marks, while the practical section carries a maximum of 20 marks. The theory section may have multiple-choice questions, short answer questions, and long answer questions, and the practical section may involve solving problems, drawing geometrical figures, or interpreting data.
5. How can I improve my problem-solving skills for the Class 7 Math CBSE exam?
Ans. To improve your problem-solving skills for the Class 7 Math CBSE exam, you can follow these tips: - Understand the problem statement carefully by reading it multiple times. - Identify the given information and what needs to be found. - Break down complex problems into smaller, manageable steps. - Use appropriate mathematical concepts and formulas to solve the problem. - Practice solving different types of problems regularly to enhance your problem-solving abilities. - Review your solutions and learn from any mistakes or errors made.
76 videos|344 docs|39 tests
Download as PDF
Explore Courses for Class 7 exam

Top Courses for Class 7

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

MCQs

,

Semester Notes

,

shortcuts and tricks

,

ppt

,

Exam

,

Class 7 Math: CBSE Past Year Paper - 7 | Mathematics (Maths) Class 7

,

practice quizzes

,

study material

,

past year papers

,

pdf

,

video lectures

,

Viva Questions

,

Class 7 Math: CBSE Past Year Paper - 7 | Mathematics (Maths) Class 7

,

mock tests for examination

,

Important questions

,

Previous Year Questions with Solutions

,

Summary

,

Class 7 Math: CBSE Past Year Paper - 7 | Mathematics (Maths) Class 7

,

Free

,

Extra Questions

,

Objective type Questions

,

Sample Paper

;