Vaidehi got 92% marks in an examination and Kavyanjali got 78% marks in the same examination. If the difference between the marks obtained by Vaidehi and Kavyanjali is 105, find the marks obtained by Vaidehi in the examination.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 690.
Let the total marks be x.
According to the question;
⇒ 92% of X - 78% of X = 105
⇒ (92 - 78)/100 of X = 105
⇒ (92 - 78)/100 of X = 105
⇒ 14 × X = 10500 ⇒ X = 750