MPESB Group 2 Subgroup 1 & 4 New Vacancy 2026 | Maths Mixed Question Class 22 | Maths By Jayant Sir

TLDR;

This video discusses key math concepts relevant for competitive exams, focusing on various types of questions. It features mixed questions primarily concerning age ratios, work and time, mixture problems, and basic probability.

• The session includes practical examples and problem-solving techniques.
• It emphasizes clear explanations of concepts to aid understanding and preparation for competitive tests.

Introduction to Today's Session [0:56]

The speaker welcomes all participants and highlights the importance of today's session, which focuses on mixed questions for Group 2 and AFO exams. This session will cover 22 questions that blend different topics, establishing a foundation for upcoming focused classes beginning tomorrow.

Current Age Problem [2:41]

The first question explores the current ages of three people in the ratio of 2:6:7, with a combined age of 30 five years ago. The speaker explains how to manage the discrepancy between current ratios and past ages to deduce the largest individual's current age.

Work and Time Question [5:54]

A hypothetical situation is presented where two individuals, Prabhat and Gautam, undertake a task with known completion times. The focus is on calculating how many days Prabhat would need to finish the remaining work after Gautam works for 10 days. The equation involves understanding work rates and their implications.

Mixture Price Problem [7:21]

In this segment, the speaker discusses a mixture problem involving wheat prices. By mixing three different grades of wheat at specific ratios and prices, participants are tasked with calculating the unknown price of the third variety based on provided average prices.

Rice Price Mixture [11:11]

The discussion continues with a similar problem about rice prices, emphasizing the calculation of the third grade's price when mixed with others at different ratios. The speaker encourages participants to practice these calculations to enhance their problem-solving skills.

Profit and Loss Calculation [14:10]

A scenario is presented about the buying and selling of a book between Amit, Aman, and Ashish, with profit margins at every sale. The objective is to find Amit's purchase price, emphasizing understanding profit calculations and their percentage impacts.

Age Difference Problem [16:16]

The speaker articulates a problem where the ages of two individuals, Girvith and Yuvash, vary under specific conditions over the years. The solutions are derived from the age ratios given, with deductions made about their current ages based on logical reasoning.

Survey Probability [20:25]

A survey reveals that 40 out of 200 students enjoy reading books. The speaker illustrates how to compute the probability of randomly selecting a student who reads, emphasizing the fundamental principles of probability in real-life scenarios.

Voting Percentage Calculation [22:45]

An example is provided about a candidate receiving 56% of votes and winning by 1440 votes. The task is to determine the total number of votes and involves calculations related to voting percentages and turnout.

Simple Interest Calculation [25:35]

The speaker introduces a question on simple interest, focusing on how long an amount will take to double at a certain percentage. The connection between the rate of interest and the duration required to reach a specific financial goal is emphasized.

Quadrilateral Perimeter Calculation [43:03]

A problem regarding the perimeter of a quadrilateral formed by given diagonal lengths is presented. The speaker explains how to derive side lengths and calculate the total perimeter through geometric principles.

Area of Triangle Problem [46:36]

The final question asks participants to calculate the value of x in a triangle with a known area. The method utilized highlights the importance of coordinate geometry in determining areas, illustrating an effective approach to solving geometric problems.