Mathematics - Class X Question Paper - Central Board Of Secondary Education Page 26
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33Q. No.
Value Points
Marks
1
22
7
11
=
x
x
m³ =
m³
1
3
7
2
3
22
11
Ü
h =
5
3
1
5
5
11
5
∴ rainfall =
Ü h =
x
=
cm
1
3
22
6
6
2
OR
The diameter of sphere = side of cube
1
7
∴ Radius of sphere =
cm
½
2
4
3
πr
Volume =
½
3
11
4
22
7
7
7
2
=
x
x
x
x
= 179
cm³
1
3
7
2
2
2
3
Q9.
C.I
xi
fi
fixi
0 -10
5
15
075
10-20
15
20
300
20-30
25
35
875
30-40
35
20
700
40-50
45
10
450
Correctly finding
Ífi ü
ö Ífixi
Í fixi
100
2400
1
Í fi
½
Í fixi
x =
1
Í fi
2400
=
= 24
½
100
Q10. Total possible cases = 6
½
Numbers greater than 3 on the die = 3 (4,5,6)
½
∴ (i) Probability of getting a number > 3 =3/6=1/2
1
(ii) Numbers less than 5 = 4
[1,2,3,4]
½
4
2
∴ Required probability =
or
½
6
3
161
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