infosys previous year question papers with answers Infosys Maths Problems by wisdom helps

 

Infosys Previous Year Important Questions: Technical Ability & Maths

Welcome to Wisdom Helps by Mahesh Sir. In this comprehensive session, we solve over 90+ previous year questions specifically tailored for the Infosys Technical Ability pattern. These questions are sourced from actual past exams and cover essential topics in Aptitude, Reasoning, and Puzzles.

Overview

If you are preparing for placement at Infosys, practicing these high-quality questions is crucial for success. This video is divided into three major sections:

• Aptitude: Mathematics-based problems including time, speed, distance, and percentages.
• Reasoning: Ranking, Syllogism, and Blood Relations.
• Puzzles: Mathematical puzzles and Cryptarithmetic.

Video Timestamps & Questions

Click on the timestamps below to jump directly to the specific problem in the video:

• [00:00:04] Intro: Overview of Infosys Technical Ability Pattern.
• [00:02:11] Question 1 (Time & Distance):
  Problem: A train traveling at 48 km/h completely crosses another train (half its length) traveling in the opposite direction at 42 km/h in 12 seconds. It also passes a platform in 45 seconds. Find the length of the platform.
• [00:09:15] Question 2 (Percentage):
  Problem: Water tax increased by 20%, but consumption decreased by 20%. Find the net increase or decrease in expenditure.
• [00:12:20] Question 3 (Number Series):
  Problem: What is the sum of the first 95 odd natural numbers?
• [00:13:18] Question 4 (Ranking):
  Problem: In a class, Pratik ranks 12th from the top and Ramesh ranks 27th from the bottom. If they interchange positions, Pratik becomes 18th from the top. Find the total number of persons in the class.
• [00:16:45] Question 5 (Number Puzzle):
  Logic: Solving for the missing number in a grid based on row/column operations.
• [00:20:43] Question 6 (Triangle Puzzle):
  Problem: Find the missing number (W1) based on triangle vertex operations.
• [00:23:26] Question 7 (Number Pattern):
  Problem: Logic based on the sum of digits (e.g., 870 -> 15).
• [00:23:54] Question 8 (Seating Arrangement):
  Problem: 4 Boys and 4 Girls sitting around a circular table facing the center with specific constraints.
• [00:32:46] Question 9 (Syllogism):
  Statements: Some Apples are Fruits; All Fruits are Vegetables; No Vegetable is Healthy.
• [00:41:15] Question 10 (Blood Relations):
  Problem: Identifying relationships based on a photograph (Raghav's family tree).
• [00:43:03] Question 11 (Coding-Decoding):
  Problem: PLANT is coded as NRDPV; find the code for GRIND.
• [00:46:50] Question 12 (Cryptarithmetic):
  Problem: L + O + G + O = OWL. Finding the values of letters using digits 0-9.

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