# DBT JRF 2020 — Question 3

Exam: DBT JRF 2020 · Section: A · Topic: Aptitude & Reasoning · Difficulty: Medium

## Question

Keshav and Kunal are good in Maths and Chemistry. Sumit and Keshav are good in Maths and Biology. Vineet and Kunal are good in Cricket and Chemistry. Sumit, Vineet and Rohit are good in Football and Biology. Who is good in Biology, Cricket, Chemistry and Football?

## Options

- **A.** Sumit
- **B.** Vineet
- **C.** Keshav
- **D.** Kunal

## Answer

Option B

## Explanation

Mapping each person to their subjects: Keshav = Maths, Chemistry, Biology; Kunal = Maths, Chemistry, Cricket; Sumit = Maths, Biology, Football; Vineet = Cricket, Chemistry, Football, Biology; Rohit = Football, Biology. The question asks who is proficient in ALL FOUR of Biology, Cricket, Chemistry, and Football. Checking Vineet: Biology ✓ (Sumit+Vineet+Rohit group), Cricket ✓ (Vineet+Kunal group), Chemistry ✓ (Vineet+Kunal group), Football ✓ (Sumit+Vineet+Rohit group). Only Vineet satisfies all four simultaneously.

Source: https://mypyqbuddy.com/questions/keshav-and-kunal-are-good-in-maths-and-6a05a8a02adafec4702931e9