Discussion

Explanation:

Let y be the number of days that they went for Yoga, t be the number of days that they played Tennis and f be the number of days that they were Free.

On 14 mornings they did not do anything, then they either played tennis in the evening or did nothing.

∴ 14 = t + f                           ...(i)

Similarly, 24 = y + f                ...(ii)

Also, 22 = t + y                     …(iii)

Adding (i) and (ii) and substituting in (iii), we get,

2f = 16

∴ f = 8 days

∴ Total number of days Amar stayed = 22 + f  = 22 + 8 = 30 days

Hence, option (c).

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