Question

सुनीता स्कोर्ड 7 मार्क्स आउट आफ मैथमेटिक्स व्हाट इज द परसेंटेज ऑफ मार्क्स​

Answer 1

Let the marks obtained by D be x.

Marks obtained by C=0.78x

Marks obtained by B= 1.28 * (0.78x)

Marks obtained by A = 0.85*marks obtained by B =0.85*(1.28*(0.78x)) = 345

0.85*1.28*0.78*x=345

x=406.5

Marks obtained by D= 406.5

Percentage obtained by D= (406.5/600) * 100% = 67.76%

Answer 2

Answer:

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