Aptitude - Arithmetical Ability

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13.

(0.04)-1.5 = ?                        
A. 25 B. 125
C. 250 D. 625



14.

(0.04)-1.5 = ?                        
A. 25 B. 125
C. 250 D. 625



15.

If ax =b, by= c and cz= a, then the value of xyz is                        
A. 0 B. 1
C. 1 D. abc




16.

If m and n are whole numbers such that mn = 121, the value of (m - 1)n + 1 is:                        
A. 1 B. 10
C. 121 D. 1000



17.

If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:                        
A. 0 B. 2
C. 4 D. 6



18.

If x = 3 + 22, then the value of                        
A. 1 B. 2
C. 22 D. 33



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