Statement: In a bid to assist visually impaired people to easily determine…

2022

Statement: In a bid to assist visually impaired people to easily determine denomination of currency notes, the Indian Institute of Technology at Ropar in Punjab has developed an Android App “Roshni”, using image processing and analytics.
Which of the following can be inferred from the given statement?
(I) The currency notes are comprised of patterns and features embedded on them to differentiate and determine the currency denomination.
(II) Image Processing and Analytics is a technology helpful for the visually impaired.
(III) There is a large number of visually impaired people in Punjab.

  1. A.

    Only I and II are implicit

  2. B.

    Only III is implicit

  3. C.

    Only I and III are implicit

  4. D.

    All are implicit

  5. E.

    None of the above

Show answer & explanation

Correct answer: A

Concept:

An inference (an implicit statement) is something that must necessarily follow from the given statement or is logically presupposed by it. If a statement adds information that is neither asserted nor required by the passage, it is NOT implicit — it is an unwarranted assumption. So each candidate is tested by one question: does the passage compel it, or merely leave it possible?

Application to this passage:

  • The app determines a note's denomination by image processing. For software to tell one denomination from another by its image, the notes must carry distinguishing patterns/features. Hence the existence of differentiating patterns on the notes is logically presupposed — statement I follows.

  • The passage explicitly says image processing and analytics were used to assist visually impaired people. So the claim that this technology is helpful for visual impairment is directly supported — statement II follows.

  • The app was built at IIT Ropar, which is located in Punjab. The location of a research institute says nothing about how many visually impaired people live in that state. The passage neither states nor needs this — statement III does not follow.

Cross-check / contrast:

Distinguish 'logically required' from 'merely possible'. I and II are required for the passage to make sense; III is an extra demographic claim the passage never makes. Therefore exactly the pair I and II is implicit, and any choice that admits III or rejects I or II conflicts with this test.

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