mathematics 100 questions - harisree palakkad...
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Mathematics 100 QuestionsA Gift for Kerala Mathematics Teachers and SSLC Students
(Prepared by John.P.A, Maths Blog Team ) Standard : X
1) 5- 5 10- 10 15- ? . n- n m- m m+n -
2) 1,2,3,4,5,6,7...... . .
: 3,7,11............. ? .
6,15,24.... ?
?
? .
3) n , n n2d . (n=3, n=5, n=6....)
4) x,y,z . y-x=k(x-z) k ?
y=(x+y+z)/3 .
5) -----
1 1
2 3 4 2 3
5 6 7 8 9 4 5 6
10 11 12 13 14 15 16 7 8 9 10
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2 2
4 6 8 4 6
10 12 14 16 18 8 10 12
---------------------------- 14 16 18 20
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1 1
3 5 7 3 5
9 11 13 15 17 7 9 11
----------------------------- 13 15 17 19
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a)
b) 30- ?
c) 30- ?
d) 30- ?
e) 30
6) 1 , 2 , 3 . 1 . 1 900 1000 . ? ?
7) -124, -119, -114........... ?
8) 8,13,18 .......... 250 480 ? .
9) 5- 12- 30 660 . 20 .
10) n m, m n m+n
-(m+n)
11) 7 2 500 ? .
12) n- 1/m, m- 1/n mn- 1 . ? ?
13) 20, 19 , 18 , 17 .......... ?
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14) x,y,z . .
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17) .
18)
19)
20) . .
21) AC, DE XY .
AB . AC=DE .
22) AB CD . P . PA . PB = PC . PD . ? .
(AB) (CD) ?
23) 7 . . 7 .. . 12, 13 12 .., 13 ..
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24)
25)
26) AB . CD .
AB=8 ., BD=2 . CD
27) O .
BC=OB x=3y
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28) ABCD
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36) | 2x+1| = 5 x . X .
37) -3 5 . ?
38) |x-3|+|x-2|=5
39) x/|x| ?
40) x+y=7; |x|+|y|=15 x,y . ?
41) | a+1| = | a+5| ; | b-3 | = | b-6 | ; | a-x | = | b-x | a, b . x .
42) x+2|x|=6 .
43) x/(x+1) + (x+1)/x = 34/15, (x 0, -1 )
44) 1) 2x2+x-1=02) x2+x+1=03) x2-4x+4=0
45) ? 1) 4x2-4x+1=02) 2x2+5x+5=03) x2-2x+1=0
46) ax2-2bx+c=0 1 a,b,c .
47) k .1) 2x2-10x+K=02) 9x2+3kx+4=03) 12x2+4kx+3=04) 2x2+3x+K=0
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48) x2+px-4=0 -4 . x2+px+k=0 . k .
49) x2+4x+k = 0 k ? .
50) (k+4)x2+(k+1)x+1 = 0 k
51) 20 1/30 (20&1/30)
52) 14. 45 . ?
53) 300 . . 5km/hr 2 . .
54) 8 . . ?
55) 3 5 cm . 3 3- 15 . .
56) 5x 3x-1 . 60 .. 3 ?
57) 60 .. . 13 . .
58) 6.25 .. . 2 . . .
59) . B 6 A . , A B 4 . B .
60) 5 300 5 . ?
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61. 8 .. 5 .. ? .
62.
PQ, PR, AB . PQ+PR= PAB .
63.
ABCD. .
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64.
. .
65.
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67.
. DE C . F .
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69.
ABC . BD, AC AC X CD=BC2 .
70.
80 .., 120 .., 100 .. 30 .. ? .
71.
ABC r , S , A r=A/S . ?
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72.
(
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PA X PB=PC X PD . ( : OP,OT,OA,AB OC, .)
75.
AB=12,BC=8,AC=10 AD,BE,CF .
76.
P(x)= x2n (k+1) x 2 +k x+1. k .
77.
k = 4 x2n 5 x 2 +k ? x+2 n .
78.
2x3 3x 2 + ax + 2 2x + 1 R . x 3 4R + 5 . a .
79.
n n3 + 1, n3+n2+n+1 1 .
80.
, , , ( ) .
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rootTypewritten Text
rootTypewritten Text
rootTypewritten Text
rootTypewritten Text
rootTypewritten Text
rootTypewritten Text(Correction: Prove PA x PB = PD.PD)
rootTypewritten Text
rootTypewritten Text
rootTypewritten Text(Correction: apply k=4 in the equation)
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81.
6x3-7x2-x+2 . 6(y+1)3 7(y+1) 2 y + 1 .
82.
x3-2x2+7x+5 x+1. x+1 .
83.
? .
84.
. , , .
85.
. r1 . . r2 . R R= r1+ r2 . ?
86.
550 ... 24 . .
87.
x,y,z V= xyz .
88.
. . . . ? .
89.
. . .
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90.
.
91.
6 .. 8 .. . . .
92.
a 60 . b 30 . ab .
93.
?
94.
10 .. .
95.
sin x + sin y + sin z = 1 sin3 x + sin3y + sin3z ?
96.
. 60, 30 . ? .
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rootTypewritten Text
rootTypewritten TextCorrection: ( sin x+sin y+ sin z = 3)
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97.
2cos(A+B) = 1; 2sin(A-B) = 1 A, B .
98.
tanA= 3/4 (1 cos A)/ (1 + cos A ) .
99.
cos A + sec A = 2 cos3 A + sec3 A .
100.
x = a sec A + b tanA, y = a tan A + b sec A x2 y 2 = a2 b 2 .
101.
tan A + sin A = mtan A - sin A = n m2-n2 = 4 mn .
102.
A (-3, -2) y 4 B . B x 6 C , y 4 D . B,C,D . A D ?
103.
x (-2, -5), (2, -3) ?
104.
A (5, 6), B (1, 5), C (2, 1), D (6, 2) .
105.
(-2, -3), (-1, 0), (7, -6) .
106.
A (2, 1), B (1, -2) (x, y) x + 3y = 0 .
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107.
A (2, 1), B (3, 6), C (11, 13), D (-1, 1) .
108.
(-2, 5), (0, 1), (2, -3) .
109.
(-3, 0), (1, -3), (4, 1) . .
110.
A (2, -1), B (3, 4), R (-2, 3), S (-3, -2) .
111.
P, Q .
112.
11 6 37. 35 ?
113.
40 . 10 4.5 . 30 3.5 . .
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114.
x : 3 5 7 9 11 13y : 6 8 15 p 8 4
7.5 . x , y . p .
115.
x : 15 17 19 20+p 23f : 2 3 4 5p 6
20 p .
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