Aptitude - Arithmetical Ability

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31.

The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is:                        
A. 12 B. 16
C. 24 D. 48



32.

Find the highest common factor of 36 and 84.                        
A. 4 B. 6
C. 12 D. 18



33.

Which of the following fraction is the largest ?                        
A. 7/8 B. 13/16
C. 31/40 D. 63/80




34.

The L.C.M. of two numbers is 45 times their H.C.F. If one of the numbers is 125 and the sum of H.C.F. and L.C.M. is 1150, the other number is :                         
A. 225 B. 215
C. 220 D. 235



35.

The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:                        
A. 9000 B. 9400
C. 9600 D. 9800



36.

The LCM of 12, 16 and 24 is                        
A. 32 B. 48
C. 50 D. 60



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