How many people attended the seminar between Mathematics and Sociology ........

Logical Reasoning(IBPS RRB PO) Puzzle Test

Direction: Read the following information carefully and answer the following questions.

Seven persons A, B, C, D, E, F, and G will attend a seminar in January, February, March, April, May, June, and July but not necessarily in the same order. The seminars are on Physiology, Biology, History, Sociology, Mathematics, Taxology, and Cardiology.

C will attend the seminar on Mathematics in the month which has 30 days. Two seminars will be conducted between C and the Cardiology seminar. Seminar on Biology is in May month. G will attend a seminar on Physiology. One seminar is between the Cardiology and History seminars. Two seminars are there between C and B who will attend the Sociology seminar. G will attend the seminar immediately before D. E will attend the seminar after A. Neither E nor A will attend the biology seminar.

How many people attended the seminar between Mathematics and Sociology?

This questions was previously asked in

RRB PO Prelims (05 Aug, 2023 Shift 2)

View All RRBA Previous Year Papers

Two

Three

Five

One

Four

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Explanation:

Let’s break this down step by step:

- We know C attends Mathematics in a 30-day month, so that’s either April or June.

- Seminar on Biology is in May.

- G attends Physiology and right before D.

- Two seminars between C (Mathematics) and Cardiology.

- One seminar between Cardiology and History.

- Two seminars between C (Mathematics) and B (Sociology).

- E attends after A. Neither E nor A attends Biology.

Let’s map it out month by month:

- Jan

- Feb

- Mar

- April (30 days): C?Mathematics

- May: Biology

- June (30 days): Possible for C, but since May is Biology and C is not Biology, April it is.

- July

Now, two seminars between C (Mathematics, April) and Cardiology. That puts Cardiology in January or July.

- If Cardiology is in January, April (C), May, June, July (Cardiology) ? three in between. That doesn’t work.

- If Cardiology is in July: April (C), May, June, July (Cardiology). So, May and June are “between” — that’s two seminars between C and Cardiology.

Similarly, two seminars between C and B (Sociology). If C is April, B could be in Jan or July. But July is Cardiology. So, B must be in January (Sociology).

- G and D — G is immediately before D. Try placing Physiology for G in Feb, then D in Mar.

- History is one after Cardiology, so if Cardiology is July, History must be in May or June. But May is Biology, so June is History.

Now we have:

- Jan: B (Sociology)

- Feb: G (Physiology)

- Mar: D (Taxology) — only subject left over

- April: C (Mathematics)

- May: (Biology)

- June: (History)

- July: (Cardiology)

Now, your question: How many people attended the seminar between Mathematics (April) and Sociology (January)? That’s Feb and Mar — two people.

- Option:1, Two — There are TWO people between Mathematics and Sociology.