1 |
(x+y)2=25 and x2+y2=13 then xy is equal to? |
16
20
18
6
|
2 |
If (x+1/x)2=96 what is the value of x2 + 1/x2 ? |
94
98
100
90
|
3 |
If a2 - b2 =36 and a-b =12 then average of 'a' and 'b' is? |
3
12
6
3/2
|
4 |
The value of {0.54 - 0.44} / {0.52 + 0.42} is? |
0.9
0.09
0.19
0.31
|
5 |
2x2y when multiplied with x2 + y2 gives ? |
2x<sup>2</sup>y<sup>3</sup> + 2xy<sup>3</sup>
2x<sup>4</sup>y+ 2x<sup>2</sup>y<sup>3</sup>
2xy<sup>2</sup>+ 2x<sup>2</sup>y
2xy<sup>3</sup>+ 2x<sup>3</sup>y
|
6 |
If 2x + y + b11 nad 3x + 2y =17 then y is? |
1
5
6
4
|
7 |
The value of x2 + 5x +6 at x=2 is: |
10
14
18
20
|
8 |
If x + 3y =7 and 2x + y =5 then value x/y is? |
1/2
1/3
2/5
8/9
|
9 |
If x + 2y =11 and x + y =10 the value of y is: |
1
2
3
4
|
10 |
x + y =17 and x=2, then value of y? |
13
15
19
10
|
11 |
1.02 - 0.02 + ? = 1.842 |
0.222
0.842
2
None
|
12 |
0.007÷√0.000049 |
1
0.0049
2
7
|
13 |
1 3/4 - 1 3/5 =? |
0.16
0.2
0.15
13/20
|
14 |
72 + 679 + 1439 + 537 + ?=4036 |
1309
1208
2308
2423
|
15 |
(242 - 17)2 - (7-5)2=? |
49000
49200
94200
49400
|
16 |
If x% of 60 =48, then x=? |
80
60
90
40
|
17 |
25% of 4÷ 4% of 25 =? |
1
3
0
6
|
18 |
0.027√90 = ? |
0.0003
0.03
3
0.00003
|
19 |
(60)2=? x 72 |
36
3600
40
50
|
20 |
x√0.09 = 3: x =? |
10
1/3
1/10
1
|