All smartphones are electronic devices. Some electronic devices are expensive. Conclusion: Some smartphones are expensive. Is this conclusion valid?

The correct answer is B: Invalid. The conclusion does not follow logically. Some electronic devices being expensive doesn't guarantee smartphones are included in that some.

In a circular arrangement of 8 people, P is opposite to T. Q is third to the right of P. R is second to the left of T. Who is sitting between R and Q (going clockwise from R)?

The correct answer is C: Cannot be determined. With 8 people in circle, opposite means 4 seats apart. If P at position 1, T at position 5. Q third right of P: position 4. R second left of T: position 3. Between R(3) and Q(4) going clockwise: nobody directly, but without complete arrangement, exact answer cannot be determined uniquely.

In a classroom, 7 students stand in a line. Vikram is 4th from the left. Shreya is 3 positions to the right of Vikram. What is Shreya's position from the left?

The correct answer is B: 7th. Vikram is 4th from left. Shreya is 3 positions to his right: 4 + 3 = 7th position

All athletes are disciplined. Some disciplined people are not wealthy. Conclusion?

The correct answer is B: Some athletes may not be wealthy. All athletes are disciplined. Some disciplined people are not wealthy. This means some athletes (being disciplined) could be among those not wealthy. So some athletes may not be wealthy.

All mathematicians are analytical. Some analytical people lack creativity. All creative people are successful. Which statement might be true?

The correct answer is C: Some mathematicians may lack creativity. All mathematicians are analytical. Some analytical people lack creativity. Therefore, some mathematicians (being analytical) may lack creativity.

State PSC Exam Preparation — BPSC, UPPSC, MPPSC

State Exam — Reasoning Ability — Coding-Decoding

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Showing 1–6 of 6 questions in Coding-Decoding

Q.1 Hard Coding-Decoding

Five friends are sitting in a circle. A sits opposite to C. B sits to the right of A. D is not adjacent to A. How many positions can E occupy?

Correct Answer: B. 2

Explanation:

In circle of 5: A-B-?-D-C or A-?-D-?-C patterns. With constraints, E can occupy 2 specific positions maintaining the circular arrangement.

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Q.2 Hard Coding-Decoding

In a family, there are 6 members. X is married to Y. X has two children with Y. Z is brother of X. Z is married to W. W has sister V. How many females are there (minimum)?

Correct Answer: B. 3

Explanation:

Y (wife), W (wife), V (sister). Minimum 3 females identified. Children's gender unspecified.

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Q.3 Hard Coding-Decoding

All students are learners. Some learners are successful. All successful people are happy. Which is definitely true?

AAll students are happy

BSome students are happy

CSome learners are happy

DAll learners are happy

Correct Answer: C. Some learners are happy

Explanation:

Some learners are successful, and all successful people are happy, therefore some learners are definitely happy.

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Q.4 Hard Coding-Decoding

Statement: All politicians are ambitious. Some ambitious people are corrupt. Conclusion: Some politicians are corrupt.

AThe conclusion follows

BThe conclusion does not follow

CData is insufficient

DDefinitely false

Correct Answer: B. The conclusion does not follow

Explanation:

Though all politicians are ambitious and some ambitious people are corrupt, we cannot conclude that the corrupt ones are from the politician group.

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Q.5 Hard Coding-Decoding

In a circular arrangement of 8 people, if person A is at position 1 and person B is directly opposite, at what position is B?

Correct Answer: C. 5

Explanation:

In a circle of 8, position 1 is opposite to position (1+8/2)=5. So B is at position 5.

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Q.6 Hard Coding-Decoding

A, B, C, D, E are sitting in a circle. A is opposite to C. B is to the immediate right of A. D is between C and E. Who sits to the immediate left of C?

Correct Answer: A. E

Explanation:

In circle: A-B (right of A)-E-D-C (opposite to A). From C going left: C-D-E-B-A. So A sits to the immediate left of C when going counterclockwise

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