Number Systems

1.272727=1.27 can be expressed in the form p/q, where p and q are integers an q≠0 than it is equal to
1. 106/99
2. 127/99
3. 14/11
4. 27/99
The decimal representation of −26/45 is
1. 0.35555
2. -15555
3. -.3555
4. -0.57777
A rational numbers between −3 and 4.
1. -4.5
2. -3.5
3. 12/2
4. 1/2
If x=√3/2, then the value of √(1+a)+√(1−a) is
1. √3
2. √3/2
3. 2+√3
4. 2-√3
If x=2.3̅ − 0.9̅, y = 2.5̅ − 0.5̅ ,then x²+y²−2xy is
1. 1/4
2. 1/3
3. 1/2
4. 1/5
If a=3+2√2 and b=1/a, then a²+b²
1. 49
2. 34
3. 100
4. 102
If x=2−√3, then the value of x²+4x+4 is.
1. 12+2√3
2. 19+8√3
3. 12+2√3
4. 19-8√3
If √18225=135, then the value of √182.25+√1.8225+√0.018225+√0.00018225 is
1. 1.49985
2. 14.9985
3. 149.985
4. 1499.85
If 2ⁿ⁺¹ + 2ⁿ⁻¹ = 640, the value of n is
1. 7
2. 8
3. 9
4. 6
The product of (0.09̅ × 7.3̅) is equal to
1. 1
2. 0
3. 2/3
4. 1/2
0.142857−0.285714is equal to
1. 2
2. 1
3. 0
4. 1/2
Which of the following is the value of a in (√5−√3)/(√5+√3) = a+b√15
1. 2
2. -1
3. -3
4. 4
The value of n, when 2ⁿ⁺⁴.3ⁿ⁺¹=288
1. 1
2. -1
3. 0
4. 2
Multiply 6√5 by 2√5
1. 60√5
2. 60
3. 20√5
4. 30
Divide 8√15 by 2√3
1. 4√5
2. √15
3. 4√3
4. 4√15