CBSE Past Year Paper Session (2019) Set - 4, Math Class 8 Class 8 Notes | EduRev

Mathematics (Maths) Class 8

Created by: Indu Gupta

Class 8 : CBSE Past Year Paper Session (2019) Set - 4, Math Class 8 Class 8 Notes | EduRev

 Page 1


A n n u a l 	 E x a m i n a t i o n
C l a s s 	 8 	 M a t h e m a t i c s
[ T i m e 	 : 	 3 H r s . 	 ] [ M M : 	 8 0 ]
N o t e :
1 . 	 T h e 	 p a p e r 	 c o n t a i n s 	 3 0 	 q u e s t i o n s 	 w i t h 	 t h r e e 	 s e c t i o n s 	 A , 	 B 	 & 	 C . 	 S e c t i o n 	 A 	 c o n t a i n s 	 1 0
q u e s t i o n s 	 o f 	 1 	 m a r k 	 e a c h , 	 S e c t i o n 	 B 	 c o n t a i n s 	 1 0 	 q u e s t i o n s 	 o f 	 3 	 m a r k s 	 e a c h 	 a n d 	 S e c t i o n 	 C
c o n t a i n s 	 1 0 	 q u e s t i o n s 	 o f 	 4 	 m a r k s 	 e a c h .
2 . 	 A l l 	 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 . 	 E x p r e s s 	 3 	 : 	 8 	 a s 	 a 	 p e r c e n t a g e .
2 . 	 I f 	 y 	 v a r i e s 	 i n v e r s e l y 	 a s 	 x , 	 a n d 	 i f 	 y = 4 	 w h e n 	 x = 7 2 , 	 f i n d 	 t h e 	 c o n s t a n t 	 o f 	 v a r i a t i o n .
3 . 	 F i n d 	 t h e 	 a r e a 	 o f 	 t h e 	 t r a p e z i u m 	 i f 	 h e i g h t 	 i s 	 7 	 c m 	 a n d 	 t w o 	 p a r a l l e l 	 s i d e s 	 a r e 	 8 	 c m 	 a n d 	 1 0 	 c m .
4 . 	 F i n d 	 t h e 	 s u r f a c e 	 a r e a 	 o f 	 a 	 c u b e 	 w h o s e 	 e d g e 	 i s 	 1 1 	 c m .
5 . 	 A 	 d i e 	 i s 	 r o l l e d 	 o n c e . 	 W h a t 	 i s 	 t h e 	 p r o b a b i l i t y 	 o f 	 r o l l i n g
a . 	 3
b . 	 a n 	 e v e n 	 n u m b e r ?
6 . 	 U s i n g 	 t h e 	 d i v i s i b i l i t y 	 r u l e , 	 w r i t e 	 w h i c h 	 o f 	 t h e 	 f o l l o w i n g 	 n u m b e r s 	 a r e 	 d i v i s i b l e 	 b y 	 9 ?
7 1 9 , 	 9 3 6
7 . 	 S o l v e 	 : 	 4 ( x + 2 ) - 2 ( x - 1 ) = 3 x - 3
8 . 	 W h a t 	 n u m b e r 	 s h o u l d 	 b e 	 a d d e d 	 t o 	 	 t o 	 g e t 	 ?
9 . 	 W r i t e 	 0 . 0 0 0 5 4 3 	 i n 	 s c i e n t i f i c 	 n o t a t i o n .
1 0 . 	 N a m e 	 t h e 	 s o l i d s 	 t h a t 	 h a v e
i . 	 4 	 f a c e s
i i . 	 6 	 f a c e s
S e c t i o n 	 : 	 B
1 1 . 	 A 	 s h o p k e e p e r 	 s o l d 	 t w o 	 p a i r s 	 o f 	 j e a n s 	 f o r 	 R s . 	 7 2 0 	 e a c h , 	 g a i n i n g 	 2 0 % 	 o n 	 o n e 	 a n d 	 l o s i n g 	 2 0 %
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A n n u a l 	 E x a m i n a t i o n
C l a s s 	 8 	 M a t h e m a t i c s
[ T i m e 	 : 	 3 H r s . 	 ] [ M M : 	 8 0 ]
N o t e :
1 . 	 T h e 	 p a p e r 	 c o n t a i n s 	 3 0 	 q u e s t i o n s 	 w i t h 	 t h r e e 	 s e c t i o n s 	 A , 	 B 	 & 	 C . 	 S e c t i o n 	 A 	 c o n t a i n s 	 1 0
q u e s t i o n s 	 o f 	 1 	 m a r k 	 e a c h , 	 S e c t i o n 	 B 	 c o n t a i n s 	 1 0 	 q u e s t i o n s 	 o f 	 3 	 m a r k s 	 e a c h 	 a n d 	 S e c t i o n 	 C
c o n t a i n s 	 1 0 	 q u e s t i o n s 	 o f 	 4 	 m a r k s 	 e a c h .
2 . 	 A l l 	 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 . 	 E x p r e s s 	 3 	 : 	 8 	 a s 	 a 	 p e r c e n t a g e .
2 . 	 I f 	 y 	 v a r i e s 	 i n v e r s e l y 	 a s 	 x , 	 a n d 	 i f 	 y = 4 	 w h e n 	 x = 7 2 , 	 f i n d 	 t h e 	 c o n s t a n t 	 o f 	 v a r i a t i o n .
3 . 	 F i n d 	 t h e 	 a r e a 	 o f 	 t h e 	 t r a p e z i u m 	 i f 	 h e i g h t 	 i s 	 7 	 c m 	 a n d 	 t w o 	 p a r a l l e l 	 s i d e s 	 a r e 	 8 	 c m 	 a n d 	 1 0 	 c m .
4 . 	 F i n d 	 t h e 	 s u r f a c e 	 a r e a 	 o f 	 a 	 c u b e 	 w h o s e 	 e d g e 	 i s 	 1 1 	 c m .
5 . 	 A 	 d i e 	 i s 	 r o l l e d 	 o n c e . 	 W h a t 	 i s 	 t h e 	 p r o b a b i l i t y 	 o f 	 r o l l i n g
a . 	 3
b . 	 a n 	 e v e n 	 n u m b e r ?
6 . 	 U s i n g 	 t h e 	 d i v i s i b i l i t y 	 r u l e , 	 w r i t e 	 w h i c h 	 o f 	 t h e 	 f o l l o w i n g 	 n u m b e r s 	 a r e 	 d i v i s i b l e 	 b y 	 9 ?
7 1 9 , 	 9 3 6
7 . 	 S o l v e 	 : 	 4 ( x + 2 ) - 2 ( x - 1 ) = 3 x - 3
8 . 	 W h a t 	 n u m b e r 	 s h o u l d 	 b e 	 a d d e d 	 t o 	 	 t o 	 g e t 	 ?
9 . 	 W r i t e 	 0 . 0 0 0 5 4 3 	 i n 	 s c i e n t i f i c 	 n o t a t i o n .
1 0 . 	 N a m e 	 t h e 	 s o l i d s 	 t h a t 	 h a v e
i . 	 4 	 f a c e s
i i . 	 6 	 f a c e s
S e c t i o n 	 : 	 B
1 1 . 	 A 	 s h o p k e e p e r 	 s o l d 	 t w o 	 p a i r s 	 o f 	 j e a n s 	 f o r 	 R s . 	 7 2 0 	 e a c h , 	 g a i n i n g 	 2 0 % 	 o n 	 o n e 	 a n d 	 l o s i n g 	 2 0 %
o n 	 t h e 	 o t h e r . 	 F i n d 	 h i s 	 g a i n 	 o r 	 l o s s 	 % .
1 2 . 	 H o w 	 m u c h 	 w i l l 	 R s 	 2 5 6 	 a m o u n t 	 t o 	 i n 	 o n e 	 y e a r 	 a t 	 	 % 	 p e r 	 a n n u m , 	 w h e n 	 t h e 	 i n t e r e s t 	 i s
c o m p o u n d e d 	 h a l f - y e a r l y ?
1 3 . 	 A 	 s t o c k 	 o f 	 f o o d 	 g r a i n s 	 i s 	 e n o u g h 	 f o r 	 4 0 0 	 p e r s o n s 	 f o r 	 9 	 d a y s . 	 H o w 	 l o n g 	 w i l l 	 t h e 	 s a m e 	 s t o c k
l a s t 	 f o r 	 3 0 0 	 p e r s o n s ?
1 4 . 	 A , 	 B 	 a n d 	 C 	 c a n 	 d o 	 a 	 p i e c e 	 o f 	 w o r k 	 i n 	 1 0 	 d a y s ; 	 A 	 a l o n e 	 c a n 	 d o 	 i t 	 i n 	 4 0 	 d a y s 	 a n d 	 B 	 a l o n e 	 c a n
d o 	 i t 	 i n 	 3 0 	 d a y s . 	 I n 	 h o w 	 m a n y 	 d a y s 	 w i l l 	 C 	 a l o n e 	 d o 	 t h e 	 s a m e 	 w o r k ?
1 5 . 	 C o n s t r u c t 	 a 	 q u a d r i l a t e r a l 	 A B C D 	 i n 	 w h i c h 	 B C 	 = 	 6 	 c m , 	 C D 	 = 	 6 	 c m , 	 D A 	 = 	 4 	 c m , 	 a n d 	
1 6 . 	 I n 	 a 	 s h o w e r , 	 5 	 c m 	 o f 	 r a i n 	 f a l l s . 	 F i n d 	 t h e 	 v o l u m e 	 o f 	 w a t e r 	 t h a t 	 f a l l s 	 o n 	 2 	 h e c t a r e s 	 o f 	 l a n d .
1 7 . 	 T h e 	 f o l l o w i n g 	 a r e 	 t h e 	 m o n t h l y 	 r e n t s 	 i n 	 r u p e e s 	 o f 	 3 0 	 s h o p :
4 2 , 	 4 9 , 	 3 7 , 	 8 2 , 	 3 7 , 	 7 5 , 	 6 2 , 	 5 4 , 	 7 9 , 	 8 4 , 	 7 5 , 	 6 3 , 	 4 4 , 	 7 4 , 	 3 6 ,
6 9 , 	 5 4 , 	 4 8 , 	 7 4 , 	 3 9 , 	 4 8 , 	 4 5 , 	 6 1 , 	 7 1 , 	 4 7 , 	 3 8 , 	 8 0 , 	 5 1 , 	 3 1 , 	 4 3
U s i n g 	 t h e 	 c l a s s 	 i n t e r v a l s 	 o f 	 e q u a l 	 w i d t h 	 i n 	 w h i c h 	 o n e 	 c l a s s 	 i n t e r v a l 	 b e i n g 	 4 0 -
5 0 ( e x c l u s i v e l y 	 5 0 ) , 	 c o n s t r u c t 	 a 	 f r e q u e n c y 	 t a b l e 	 f o r 	 t h e 	 a b o v e 	 d a t a .
1 8 . 	 D r a w 	 a 	 h i s t o g r a m 	 f o r 	 t h e 	 f o l l o w i n g 	 f r e q u e n c y 	 d i s t r i b u t i o n :
S i z e 0 - 1 0 1 0 - 2 0 2 0 - 3 0 3 0 - 4 0 4 0 - 5 0 5 0 - 6 0
F r e q u e n c y 5 1 0 2 0 2 5 2 0 1 0
1 9 . 	 T h e 	 s u m 	 o f 	 t h e 	 d i g i t s 	 o f 	 a 	 t w o - d i g i t 	 n u m b e r 	 i s 	 9 . 	 T h e 	 n u m b e r 	 i s 	 6 	 t i m e s 	 t h e 	 u n i t 	 d i g i t . 	 F i n d
t h e 	 n u m b e r .
2 0 . 	 S a n j a y 	 i s 	 n o w 	 	 a s 	 o l d 	 a s 	 h i s 	 b r o t h e r . 	 I n 	 6 	 m o r e 	 y e a r s , 	 h e 	 w i l l 	 b e 	 	 a s 	 o l d 	 a s 	 h i s 	 b r o t h e r
t h e n . 	 W h a t 	 i s 	 t h e 	 p r e s e n t 	 a g e 	 o f 	 e a c h 	 b o y ?
S e c t i o n 	 : 	 C
2 1 . 	 N a s e e m 	 r u n s 	 a 	 r e a d y m a d e 	 g a r m e n t s 	 s h o p . 	 H e 	 m a r k s 	 t h e 	 g a r m e n t s 	 a t 	 s u c h 	 a 	 p r i c e 	 t h a t
e v e n 	 a f t e r 	 a l l o w i n g 	 a 	 d i s c o u n t 	 o f 	 1 2 . 5 % , 	 h e 	 m a k e s 	 a 	 p r o f i t 	 o f 	 1 0 % . 	 F i n d 	 t h e 	 m a r k e d 	 p r i c e d
o f 	 a 	 s u i t 	 w h i c h 	 c o s t s 	 h i m 	 R s . 1 4 7 0 .
2 2 . 	 R s 	 8 0 0 0 	 b e c a m e 	 R s 	 9 2 6 1 	 i n 	 a 	 c e r t a i n 	 i n t e r v a l 	 o f 	 t i m e 	 a t 	 t h e 	 r a t e 	 o f 	 5 % 	 p e r 	 a n n u m , 	 C . I .
F i n d 	 t h e 	 t i m e .
2 3 . 	 I n 	 h o w 	 m a n y 	 d a y s 	 o f 	 w o r k i n g 	 8 	 h o u r s 	 e a c h 	 d a y , 	 c a n 	 1 2 	 m e n 	 d o 	 t h e 	 s a m e 	 w o r k 	 a s 	 1 0 	 m e n
w o r k i n g 	 9 	 h o u r s 	 a 	 d a y s 	 d o 	 i n 	 1 6 	 d a y s ?
2 4 . 	 P i p e s 	 A 	 a n d 	 B 	 c a n 	 f i l l 	 a 	 t a n k 	 i n 	 5 	 a n d 	 6 	 h o u r s 	 r e s p e c t i v e l y . 	 P i p e 	 C 	 c a n 	 e m p t y 	 i t 	 i s 	 1 2 	 h o u r s .
Page 3


A n n u a l 	 E x a m i n a t i o n
C l a s s 	 8 	 M a t h e m a t i c s
[ T i m e 	 : 	 3 H r s . 	 ] [ M M : 	 8 0 ]
N o t e :
1 . 	 T h e 	 p a p e r 	 c o n t a i n s 	 3 0 	 q u e s t i o n s 	 w i t h 	 t h r e e 	 s e c t i o n s 	 A , 	 B 	 & 	 C . 	 S e c t i o n 	 A 	 c o n t a i n s 	 1 0
q u e s t i o n s 	 o f 	 1 	 m a r k 	 e a c h , 	 S e c t i o n 	 B 	 c o n t a i n s 	 1 0 	 q u e s t i o n s 	 o f 	 3 	 m a r k s 	 e a c h 	 a n d 	 S e c t i o n 	 C
c o n t a i n s 	 1 0 	 q u e s t i o n s 	 o f 	 4 	 m a r k s 	 e a c h .
2 . 	 A l l 	 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 . 	 E x p r e s s 	 3 	 : 	 8 	 a s 	 a 	 p e r c e n t a g e .
2 . 	 I f 	 y 	 v a r i e s 	 i n v e r s e l y 	 a s 	 x , 	 a n d 	 i f 	 y = 4 	 w h e n 	 x = 7 2 , 	 f i n d 	 t h e 	 c o n s t a n t 	 o f 	 v a r i a t i o n .
3 . 	 F i n d 	 t h e 	 a r e a 	 o f 	 t h e 	 t r a p e z i u m 	 i f 	 h e i g h t 	 i s 	 7 	 c m 	 a n d 	 t w o 	 p a r a l l e l 	 s i d e s 	 a r e 	 8 	 c m 	 a n d 	 1 0 	 c m .
4 . 	 F i n d 	 t h e 	 s u r f a c e 	 a r e a 	 o f 	 a 	 c u b e 	 w h o s e 	 e d g e 	 i s 	 1 1 	 c m .
5 . 	 A 	 d i e 	 i s 	 r o l l e d 	 o n c e . 	 W h a t 	 i s 	 t h e 	 p r o b a b i l i t y 	 o f 	 r o l l i n g
a . 	 3
b . 	 a n 	 e v e n 	 n u m b e r ?
6 . 	 U s i n g 	 t h e 	 d i v i s i b i l i t y 	 r u l e , 	 w r i t e 	 w h i c h 	 o f 	 t h e 	 f o l l o w i n g 	 n u m b e r s 	 a r e 	 d i v i s i b l e 	 b y 	 9 ?
7 1 9 , 	 9 3 6
7 . 	 S o l v e 	 : 	 4 ( x + 2 ) - 2 ( x - 1 ) = 3 x - 3
8 . 	 W h a t 	 n u m b e r 	 s h o u l d 	 b e 	 a d d e d 	 t o 	 	 t o 	 g e t 	 ?
9 . 	 W r i t e 	 0 . 0 0 0 5 4 3 	 i n 	 s c i e n t i f i c 	 n o t a t i o n .
1 0 . 	 N a m e 	 t h e 	 s o l i d s 	 t h a t 	 h a v e
i . 	 4 	 f a c e s
i i . 	 6 	 f a c e s
S e c t i o n 	 : 	 B
1 1 . 	 A 	 s h o p k e e p e r 	 s o l d 	 t w o 	 p a i r s 	 o f 	 j e a n s 	 f o r 	 R s . 	 7 2 0 	 e a c h , 	 g a i n i n g 	 2 0 % 	 o n 	 o n e 	 a n d 	 l o s i n g 	 2 0 %
o n 	 t h e 	 o t h e r . 	 F i n d 	 h i s 	 g a i n 	 o r 	 l o s s 	 % .
1 2 . 	 H o w 	 m u c h 	 w i l l 	 R s 	 2 5 6 	 a m o u n t 	 t o 	 i n 	 o n e 	 y e a r 	 a t 	 	 % 	 p e r 	 a n n u m , 	 w h e n 	 t h e 	 i n t e r e s t 	 i s
c o m p o u n d e d 	 h a l f - y e a r l y ?
1 3 . 	 A 	 s t o c k 	 o f 	 f o o d 	 g r a i n s 	 i s 	 e n o u g h 	 f o r 	 4 0 0 	 p e r s o n s 	 f o r 	 9 	 d a y s . 	 H o w 	 l o n g 	 w i l l 	 t h e 	 s a m e 	 s t o c k
l a s t 	 f o r 	 3 0 0 	 p e r s o n s ?
1 4 . 	 A , 	 B 	 a n d 	 C 	 c a n 	 d o 	 a 	 p i e c e 	 o f 	 w o r k 	 i n 	 1 0 	 d a y s ; 	 A 	 a l o n e 	 c a n 	 d o 	 i t 	 i n 	 4 0 	 d a y s 	 a n d 	 B 	 a l o n e 	 c a n
d o 	 i t 	 i n 	 3 0 	 d a y s . 	 I n 	 h o w 	 m a n y 	 d a y s 	 w i l l 	 C 	 a l o n e 	 d o 	 t h e 	 s a m e 	 w o r k ?
1 5 . 	 C o n s t r u c t 	 a 	 q u a d r i l a t e r a l 	 A B C D 	 i n 	 w h i c h 	 B C 	 = 	 6 	 c m , 	 C D 	 = 	 6 	 c m , 	 D A 	 = 	 4 	 c m , 	 a n d 	
1 6 . 	 I n 	 a 	 s h o w e r , 	 5 	 c m 	 o f 	 r a i n 	 f a l l s . 	 F i n d 	 t h e 	 v o l u m e 	 o f 	 w a t e r 	 t h a t 	 f a l l s 	 o n 	 2 	 h e c t a r e s 	 o f 	 l a n d .
1 7 . 	 T h e 	 f o l l o w i n g 	 a r e 	 t h e 	 m o n t h l y 	 r e n t s 	 i n 	 r u p e e s 	 o f 	 3 0 	 s h o p :
4 2 , 	 4 9 , 	 3 7 , 	 8 2 , 	 3 7 , 	 7 5 , 	 6 2 , 	 5 4 , 	 7 9 , 	 8 4 , 	 7 5 , 	 6 3 , 	 4 4 , 	 7 4 , 	 3 6 ,
6 9 , 	 5 4 , 	 4 8 , 	 7 4 , 	 3 9 , 	 4 8 , 	 4 5 , 	 6 1 , 	 7 1 , 	 4 7 , 	 3 8 , 	 8 0 , 	 5 1 , 	 3 1 , 	 4 3
U s i n g 	 t h e 	 c l a s s 	 i n t e r v a l s 	 o f 	 e q u a l 	 w i d t h 	 i n 	 w h i c h 	 o n e 	 c l a s s 	 i n t e r v a l 	 b e i n g 	 4 0 -
5 0 ( e x c l u s i v e l y 	 5 0 ) , 	 c o n s t r u c t 	 a 	 f r e q u e n c y 	 t a b l e 	 f o r 	 t h e 	 a b o v e 	 d a t a .
1 8 . 	 D r a w 	 a 	 h i s t o g r a m 	 f o r 	 t h e 	 f o l l o w i n g 	 f r e q u e n c y 	 d i s t r i b u t i o n :
S i z e 0 - 1 0 1 0 - 2 0 2 0 - 3 0 3 0 - 4 0 4 0 - 5 0 5 0 - 6 0
F r e q u e n c y 5 1 0 2 0 2 5 2 0 1 0
1 9 . 	 T h e 	 s u m 	 o f 	 t h e 	 d i g i t s 	 o f 	 a 	 t w o - d i g i t 	 n u m b e r 	 i s 	 9 . 	 T h e 	 n u m b e r 	 i s 	 6 	 t i m e s 	 t h e 	 u n i t 	 d i g i t . 	 F i n d
t h e 	 n u m b e r .
2 0 . 	 S a n j a y 	 i s 	 n o w 	 	 a s 	 o l d 	 a s 	 h i s 	 b r o t h e r . 	 I n 	 6 	 m o r e 	 y e a r s , 	 h e 	 w i l l 	 b e 	 	 a s 	 o l d 	 a s 	 h i s 	 b r o t h e r
t h e n . 	 W h a t 	 i s 	 t h e 	 p r e s e n t 	 a g e 	 o f 	 e a c h 	 b o y ?
S e c t i o n 	 : 	 C
2 1 . 	 N a s e e m 	 r u n s 	 a 	 r e a d y m a d e 	 g a r m e n t s 	 s h o p . 	 H e 	 m a r k s 	 t h e 	 g a r m e n t s 	 a t 	 s u c h 	 a 	 p r i c e 	 t h a t
e v e n 	 a f t e r 	 a l l o w i n g 	 a 	 d i s c o u n t 	 o f 	 1 2 . 5 % , 	 h e 	 m a k e s 	 a 	 p r o f i t 	 o f 	 1 0 % . 	 F i n d 	 t h e 	 m a r k e d 	 p r i c e d
o f 	 a 	 s u i t 	 w h i c h 	 c o s t s 	 h i m 	 R s . 1 4 7 0 .
2 2 . 	 R s 	 8 0 0 0 	 b e c a m e 	 R s 	 9 2 6 1 	 i n 	 a 	 c e r t a i n 	 i n t e r v a l 	 o f 	 t i m e 	 a t 	 t h e 	 r a t e 	 o f 	 5 % 	 p e r 	 a n n u m , 	 C . I .
F i n d 	 t h e 	 t i m e .
2 3 . 	 I n 	 h o w 	 m a n y 	 d a y s 	 o f 	 w o r k i n g 	 8 	 h o u r s 	 e a c h 	 d a y , 	 c a n 	 1 2 	 m e n 	 d o 	 t h e 	 s a m e 	 w o r k 	 a s 	 1 0 	 m e n
w o r k i n g 	 9 	 h o u r s 	 a 	 d a y s 	 d o 	 i n 	 1 6 	 d a y s ?
2 4 . 	 P i p e s 	 A 	 a n d 	 B 	 c a n 	 f i l l 	 a 	 t a n k 	 i n 	 5 	 a n d 	 6 	 h o u r s 	 r e s p e c t i v e l y . 	 P i p e 	 C 	 c a n 	 e m p t y 	 i t 	 i s 	 1 2 	 h o u r s .
T h e 	 t a n k 	 i s 	 h a l f 	 f u l l . 	 A l l 	 t h e 	 t h r e e 	 p i p e s 	 a r e 	 i n 	 o p e r a t i o n 	 s i m u l t a n e o u s l y . 	 A f t e r 	 h o w 	 m u c h
t i m e 	 w i l l 	 t h e 	 t a n k 	 b e 	 f u l l ?
2 5 . 	 I n 	 t h e 	 f i g u r e , 	 A B 	 a n d 	 D C 	 a r e 	 p a r a l l e l 	 s i d e s 	 o f 	 a 	 t r a p e z i u m 	 A B C D 	 a n d 	 .
G i v e n 	 A B = 1 5 	 c m , 	 C D = 4 0 	 c m , 	 a n d 	 d i a g o n a l 	 A C 	 = 	 4 1 	 c m , 	 c a l c u l a t e 	 t h e 	 a r e a 	 o f 	 t h e 	 t r a p e z i u m
A B C D .
2 6 . 	 T h e 	 c i r c u m f e r e n c e 	 o f 	 t h e 	 b a s e 	 o f 	 a 	 c y l i n d r i c a l 	 v e s s e l 	 i s 	 1 3 2 	 c m 	 a n d 	 i t s 	 h e i g h t 	 i s 	 2 5 	 c m .
H o w 	 m a n y 	 l i t r e s 	 o f 	 w a t e r 	 c a n 	 i t 	 h o l d ?
2 7 . 	 C o n s t r u c t 	 a 	 r h o m b u s 	 A B C D 	 i n 	 w h i c h 	 A C = 7 	 c m 	 a n d 	 B D 	 = 	 5 	 c m . 	 A l s o , 	 w r i t e 	 t h e 	 s t e p s 	 o f
c o n s t r u c t i o n .
2 8 . 	 A 	 c a r d 	 i s 	 c h o s e n 	 a t 	 r a n d o m 	 f r o m 	 a n 	 o r d i n a r y 	 d e c k 	 o f 	 p l a y i n g 	 c a r d s . 	 W h a t 	 i s 	 t h e
p r o b a b i l i t y 	 t h a t
a . 	 A 	 d i a m o n d 	 i s 	 c h o s e n ?
b . 	 A 	 k i n g 	 i s 	 c h o s e n ?
c . 	 A 	 b l a c k 	 4 	 i s 	 c h o s e n ?
d . 	 A 	 7 	 o f 	 h e a r t s 	 i s 	 c h o s e n ?
2 9 . 	 D i v i d e 	 t h e 	 s u m 	 o f 	 	 a n d 	 	 b y 	 t h e 	 r e c i p r o c a l 	 o f 	 .
3 0 . 	 T h e 	 n u m b e r 	 o f 	 s t u d e n t s 	 i n 	 a 	 h o s t e l 	 s p e a k i n g 	 d i f f e r e n t 	 l a n g u a g e s 	 i s 	 g i v e n 	 b e l o w . 	 P r e s e n t
t h e 	 d a t a 	 i n 	 a 	 p i e 	 c h a r t .
L a n g u a g e 	 H i n d i 	 E n g l i s h 	 M a r a t h i T a m i l 	 B e n g a l i T o t a l
N u m b e r 	 o f 	 s t u d e n t s 4 0 1 0 8 8 6 7 2
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CBSE Past Year Paper Session (2019) Set - 4

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shortcuts and tricks

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video lectures

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CBSE Past Year Paper Session (2019) Set - 4

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Previous Year Questions with Solutions

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pdf

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Free

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Sample Paper

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Semester Notes

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MCQs

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study material

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Objective type Questions

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Math Class 8 Class 8 Notes | EduRev

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Summary

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Math Class 8 Class 8 Notes | EduRev

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practice quizzes

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CBSE Past Year Paper Session (2019) Set - 4

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Important questions

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