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In an examination Mohit obtained 20% more marks than Sushant but are 10% less than Rajesh. If the marks obtained by Sushant are 1080, find the percentage of marks obtained by Rajesh, if the full marks are 2000. 

(a) 72% 

(b) 86.66% 

(c) 78.33% 

(d) 75%

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(a) 72%

Sushant’s marks = 1080

Mohit’s marks =\(\frac{120}{100}\)x 1080 = 1296

Let Rajesh’s marks be x. Then,

\(\frac{90X}{100}\) = 1296   \(\Rightarrow\) x =  1440

\(\therefore\) Percentage of Rajesh’s marks = \(\frac{1440}{2000}\) x 100%

= 72%

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