4 + 7 + 2 = 281435
7 + 3 + 9 = 212781
6 + 2 + 7 = 121456
2 + 8 + 5 = 164036
8 + 4 + 6 =?
Answers:
8 + 4 + 6
(8
* 4) = 32 and (4 * 6) = 24. Now putting the values together it gives 3224.
Now (8 – 1) = 7. If we put the digit together
with 3224, it gives 32247.
Now (8 + 4 + 6) + 2 = 20 and now taking the
last digit of the number ’20’ and keeping together with the number 32247, the
final number ‘322470’ is ready.
Q 2. What replaces the question mark?
56
3 49 27 18
74
62 19 8 35
65
92 ? 34 81
Answer: For equation (iii), we need to get the sum
value equal to 45.
So
the logic should be (6 + 5 + 9 + 2 + ? + 3 + 4 + 8 + 1) = 45.
Then,
38 + ? = 45
So
? = (45 – 38) = 7
So
? = 7.
Q 3. What replaces the question mark?
5
+ 3 + 2 = 151022
9
+ 2 + 4 = 183652
8
+ 6 + 3 = 482466
5
+ 4 + 5 = 202541
Then,
7 + 2 + 5 =?
Answer: It works out to be a + b + c = (a * b) (a *
c)??
The
last 2 digit is equal to (a * b) + (a * c) - b
We
use the same formula;
(a
x b) = (7×2) = 14;
(a
x c) = (7*5) = 35;
(a
* b) + (a*c)-b = (7 × 2) + (7 × 5) - 2 = 14 + 35 - 2 = 47
Hence
7 + 2 + 5 = 143547
Q 4: What replaces the question mark?
10×11×12=9
11×12×13=9
12×13×14=9
13×14×15=9
Then
14×16×20=?
Answer:
10 × 11 × 12 = {(1+0) × (1+1) ×
(1+2)}² =6^2= 36 = 3 + 6 = 9.
11
× 12 × 13 = {(1 + 1) × (1 + 2) × (1 + 3)}² = 24^2 = (2 + 4)² = 36 = 3 + 6 = 9.
12
× 13 × 14 = {(1 + 2) × (1 + 3) × (1 + 4)}² = 60^2 = (6 + 0)² = 36 = 3 + 6 = 9.
13
× 14 × 15 = {(1 + 3) × (1 + 4) × (1 + 5)}² = 120^2 = (1 + 2 + 0)² = 9.
14 × 16 × 20 = {(1 + 4) × (1 + 6) (2 + 0)}² = 70^2 = (7 + 0)² = 49 = 4 + 9 = 13 =
1 + 3 = 4.
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