दस अंकों का औसत 40 है; 25 के औसत से दो अंक हटाएँ और 50 के औसत से तीन अंक जोड़ें। नया औसत ज्ञात कीजिए।
A44 6/11
B46 4/11
C45 5/11
D47 3/11
Answer & Solution
Correct answer: C. 45 5/11
नया कुल है 400 − 50 + 150 = 500 पार 11 स्कोर, दे रहा है 45 5/11।
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