| Q. No. 1: | In the question below, choose the appropriate number for the quadrant in which the question marks appear :
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| A : | 13
| | B : | 18
| | C : | 30
| | D : | -30
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Answer: C
In the first two circles
2*3*7 = 42 And, 1*2*9 =18
In the same way, for the third circle,
-2*-3*5 = 30.
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| Q. No. 2: | In the question below, choose the appropriate number for the quadrant in which the question marks appear :
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| A : | 7
| | B : | -12
| | C : | 12
| | D : | 9
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Answer: B
We have 2*5*3 = 30 and 5*-1*1 = -5.
Working in similar way, we get for the third circle,
4 * -1 * 3 = -12
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| Q. No. 3: | In the question below, choose the appropriate number for the quadrant in which the question marks appear :
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| A : | 8
| | B : | 11
| | C : | 7
| | D : | 9
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Answer: C
Adding the numbers in the upper quadrants, we get the number in the right lower quadrant.
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| Q. No. 4: | Find the missing number :
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| A : | 240
| | B : | 195
| | C : | 84
| | D : | None of these
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Answer: B
(2+6+2+3)2 - 1 = 168
(3+5+1+2)2 - 1 = 120
(2+3+5+4)2 - 1 = 195.
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| Q. No. 5: | Find the missing number :
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| A : | 18
| | B : | 27
| | C : | 24
| | D : | 9
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Answer: D
6561 = 81 * 81 = (81)2
81 = 9 * 9 = 92
9 = 3 * 3 = 32
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| Q. No. 6: | Find the missing number :
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| A : | 76
| | B : | 66
| | C : | 72
| | D : | 82
| | |
Answer: B
24 + 30 = 54
70 + 42 = 112
38 + 28 = 66
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