Discussion

Explanation:

We know, angle between the hands of a clock (θ°) = |30h-112m|

⇒ 50° = |30×7-112m|

Case 1:
⇒ 50° = 210 - 112m

112m = 160°

⇒ m = 32011 = 29111minutes

∴ The hands will be at an angle of 50° at 7 : 29111.

Case 2:
⇒ -50° = 210 - 112m

112m = 260°

⇒ m = 52011 = 47311minutes

∴ The hands will be at an angle of 50° at 7 : 47311.

Hence, option (d).

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