App Logo

No.1 PSC Learning App

1M+ Downloads
In an Examination a student scores four marks for every correct answer and loses one mark for every wrong answer. If he attempts all 75 questions and secures 125 marks. The number of questions he attempt correctly is.

A35

B40

C82

D46

Answer:

B. 40

Read Explanation:

Let the number of correct answer be x No of incorrect answer = 75 - x 4x - (75 - x) = 125 5x = 200 x = 40


Related Questions:

100 കുട്ടികളുള്ള ക്ലാസ്സിൽ രാമന്റെ റാങ്ക് മുകളിൽ നിന്നും 52 ആണെങ്കിൽ, താഴെ നിന്നും റാങ്ക് എത്ര ആണ് ?
Five students 1, 2, 3, 4 and 5 - are sitting around a circular table facing the centre. 4 is sitting to the immediate right of 1 and immediate left of 2. 5 is sitting second to the left of 1. Which of the following statements is true?
Seven persons N, O, P, Q, R, S, and T are sitting in a row facing North. Only three persons are sitting between P and T. N is sitting at one end. P is sitting somewhere to the left of N. O is to the immediate right of P and immediate left of R. Exactly two people are sitting to the right of T who is sitting to the immediate right of Q. Who is sitting in the middle?
P, Q, R, S, T, U, V, and W are sitting around a square table facing the centre in such a way that four of them sit at the four corners of the square table while the remaining four sit in the middle of each of the four sides. P sits second to the left of R, who sits in the middle of one of the sides of the table. Q, who doesn’t sit at any corner of the table sits third to the left of V. S is an immediate neighbour of W. Q is not immediate neighbour of T. Only three people sit between V and W. What is the position of U with respect to T?
72 പേരുള്ള ഒരു വരി. ജയൻ പിന്നിൽ നിന്നും 12-ാം മത് ആളാണ് എങ്കിൽ, മുന്നിൽ നിന്നും എത്രാമത്തെ ആളാണ് ജയൻ ?