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Answer :
(i) According to the condition,
I + 12 = 34 or x + 12 = 34
\(\therefore \) By inspection, we have
22 + 12 = 34
So, I am 22.
(ii) Let I am ‘x’.
We know that there are 7 days in a week.
\(\therefore \) upcounting from x for 7, the sum = 23
By inspections, we have
16 + 7 = 23
\(\therefore \) x = 16
Thus I am 16.
(iii) Let the special number be x and there are 11 players in cricket team.
\(\therefore \)Special Number -6 = 11
\(\therefore \) x – 6 = 11
By inspection, we get
17 – 6 = 11
\(\therefore \)x = 17
Thus I am 17.
(iv) Suppose I am ‘x’.
\(\therefore \) 22 – I = I
or 22 – x = x
By inspection, we have
22 – 11 = 11
\(\therefore \)x = 11
Thus I am 11.