-
7 21 3
d 7 33
If 'd' is the resultant of the first row, what will be the resultant of the second row ?
-
- 40
- 138
- 231
- 80
- None of the above
Correct Option: C
Rules
(i) (Odd number) x (Composite odd number)
(ii) (Even number) + (Odd number)
(iii) (Even number) → (Perfect square number), then (Perfect square number) - (Even number)
(iv) (Odd number) ÷ (Prime odd number)
(v) (Odd number) - (Even number)
Solution
1st Row 7 21 3 ⇒ 7 x 21 = 147 [rule (i)]
⇒ 147 ÷ 3 = 49 = d [rule (iv)]
2nd Row d 7 33 ⇒ 49 7 33
⇒ 49 ÷ 7 = 7 [rule (iv)]
⇒ 7 x 33 = 231 [rule (i)]
∴ Resultant of second row = 231
