“The average marks of 14 students in a class is 63. If the marks of each student are doubled, find the new average.”
“The average marks of 14 students in a class is 63. If the marks of each student are doubled, find the new average.”
एक कक्षा में 14 विद्यार्थियों के अंको का औसत 63 हैं। यदि प्रत्येक विद्यार्थी के अंक दोगुने कर दिए जाएं, तो नया औसत ज्ञात कीजिए।
Detailed Solution & Logic
Correct Answer:
126
Given:
Number of students = 14, Average marks = 63
Total marks of 14 students = $ 14 \times 63 = 882 $
If each mark is doubled, new total marks = $ 2 \times 882 = 1764 $
New average = $ \frac{\text{New total marks}}{\text{Number of students}} = \frac{1764}{14} = 126 $
Answer =126
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