Quantitative Aptitude Surds & Indices Question

Quantitative Aptitude – Surds & Indices – Questions – 01

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1. If (a / b)y – 1 = (b / a)y – 3, then y is equal to :

 
 
 
 

2. If √5 + 3y = 3, then y is equal to :

 
 
 
 

3. If 2y – 1 + 2y + 1 = 320, then y is equal to :

 
 
 
 

4. If 5y + 3 = (25)3y – 4, then the value of y is :

 
 
 
 

5. If 3√32 = 2y, then y is equal to :

 
 
 
 

6. If 2w = 3y = 6-z, then (1 / w + 1 / y + 1 / z) is equal to :

 
 
 
 

7. If 2y x 81 / 5, then y is equal to :

 
 
 
 

8. If aw = by = cz and b2 = ac, then y equals :

 
 
 
 

9. If w = ya, y = zb and z = wc, then the value of abc is :

 
 
 
 

10. If 22y – 1 = 1 / 8y – 3, then the value of y is :

 
 
 
 

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