Yadi ek samuh ke 200 madon ka maadhya 55 h,tatha is samuh ke 80 madon ka madhya 61 h,to baki 120 madon ka maadhya kya hoga??
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Answer:
51
Step-by-step explanation:
120 Madon Ka maadhya = (200×55 - 80×61 )/120
= (1100 - 488)/12 = 612/12 = 51
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