Solutions of Aptitude Test

1) answer: D

log 0.319=log0.318+(log0.318-log0.317) = 0.3396

2) x= 2 kg Packs

y= 1 kg packs

x + y = 150 .......... Eqn 1

2x + y = 264 .......... Eqn 2

Solve the Simultaneous equation; x = 114

so, y = 36

2) answer: D

Number of 2 kg Packs = 114.

3) Answer: B

Multiply the second equation with -1 then it will become - x - 2y> - 3. Add the equations.

You will get y > -1.

4) Answer: B

Given R + B + G = 17; G = 7; and R + G < 13. Substituting G = 7 in the last equation, We

get R < 6. So maximum value of R = 6

5) Answer: A

Incomes:3:4

Expenditures:4:5

3x-4y=1/4(3x)

12x-16y=3x

9x=16y

y=9x/16

(3x-4(9x/16))/((4x-5(9x/16)))

ans:12/19

6) Answer: 1

bcoz g(2)=g(1)-g(0)=1+1=2

g(3)=1

g(4)=-1

g(5)=-2

g(6)=-1

7) Answer: 5

8) Answer : 24

9) To find A-C, We will find 2's compliment of C and them add it with A,

That will give us (A-C)

2's compliment of C=1's compliment of C+1

=11000101+1=11000110

A-C=11000101+11000110

=10001001

Now (A-C) U B is .OR. logic operation on (A-C) and B

10001001 .OR . 00110011

The answer is = 10111011,

Whose decimal equivalent is 187.

10) Answer: A

11) Answer: 20 years

12) Answer: 18

13) Answer: 10 years

14) Answer: 33.33%

15) Answer: 8 * 7 = 56

16) c

17) a

18) d

19) c

20) c

21) a

22) a

23) b

24) a

25) b

26)a

27)b

28)d

29)c

30)d