RRB Assistant Loco Pilot and Technician Model Paper 7 with solutions

Question : 22 of 100

Marks: +1, -0

In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. A student attempted all the 200 questions and scored, in all 200 marks. The number of questions, he answered correctly was

Validate

Solution:

(b) If the number of correct answers be x, then
x × 4 – 1. (200 – x) = 200
⇒ 4x – 200 + x = 200
⇒ 5x = 400
⇒ x =

400/5

= 80

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