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In a class of 50 students, 40% are girls...

In a class of 50 students, 40% are girls. The average marks of the whole class are 64.4 and the average of the boys’ marks is 62. What are the average marks of the girls?
50 छात्रों की एक कक्षा में, 40% लड़कियाँ हैं | पूरी कक्षा के औसत अंक 64.4 हैं तथा लड़कों के औसत अंक 62 हैं | लड़कियों के औसत अंक ज्ञात करें |

A

67

B

66.8

C

66.4

D

68

Text Solution

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The correct Answer is:
D
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