allery6 वर्षांत आई तिच्या मुलाच्या वयाच्या दुप्पट होईल; 6 वर्षांपूर्वी ती त्याच्या चारपट होती. आई आता?
A28 वर्षे
B36 वर्षे
C30 वर्षे
D32 वर्षे
Answer & Solution
Correct answer: C. 30 वर्षे
परिस्थिती M = 2C + 6 आणि M = 4C − 18 देते, म्हणून C = 12 आणि M = 30 वर्षे.
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