Even though it is a GK based blog, we are giving higher priority to getting a job. So we just familiarizing some important Mathematics questions to freshers.
Preparing for competitive exams like IBPS, Bank Clerk, Postal Assistant, RRB, and PSC requires a strong foundation in mathematics. A single question can significantly impact your rank, making math practice crucial. Here, we'll discuss frequently asked math questions in these exams, focusing on topics like algebra, arithmetic, geometry, and data interpretation.
Important Math Categories for Competitive Exams1. Algebra: Equations, inequalities, and algebraic expressions.2. Arithmetic: Percentages, ratios, proportions, and time, speed, and distance problems.3. Geometry: Points, lines, angles, and shapes.4. Data Interpretation: Analyzing and interpreting data from tables, charts, and graphs.Practice RegularlyTo excel in math, practice regularly and focus on understanding concepts. Find more questions online and practice consistently to improve your problem-solving skills.Key TakeawaysMathematics plays a crucial role in competitive exams. Practice regularly to improve problem-solving skills. Focus on understanding concepts, not just memorizing formulas.You may be searching for all these to reach your desired destination.Competitive exam math questions, math practice for bank exams, quantitative aptitude for PSC, algebra questions for RRB, data interpretation for IBPS.we're posting just one maths question per category. Find more questions and practice regularly to improve your skills.which number is known as Ramanujan numberAnswer: 1729
Some Important Maths Equations
1. a(b+c) = ab + ac
2. (a+b)2 = a2 + 2ab + b2
3. (a-b)2 = a2-2ab + b2
4. (a+b)2 = (a-b)2 + 4ab
5. (a-b)2 = (a+b)2 - 4ab
6. (a-b) (a+b) = a2 - b2
7. (a+b)3 = a3 + 3ab(a+b) + b3
8. (a-b)3 = a3 - 3ab(a-b) - b3
9. a3 + b 3 = (a+b) (a2 - ab + b2)
10. a3 - b 3 = (a-b) (a2 + ab + b2)
11. (a3 - b3) / (a2 + ab + b2) = a-b
12. (a3 + b3) / (a2 - ab + b2) = a+b
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How to use these equations in exams.
1. (4.75 x 4.75 x 4.75 + 1.25 x 1.25 x 1.25) / ( 4.75 x 4.75 + 1.25 x 1.25 - 4.75 x 1.25) = ?
If you saw a question like this, you can use these equations to find its answer. If try to solve these question without using equation you gonna take too much time , thats what the examiners want.
= (4.753 + 1.253) / (4.752 + 1.253 - 4.75 x 1.25)
now it is same like in the 12th equation (a3 + b3) / (a2 - ab + b2) = a+b
ie. = 4.75 + 1.25
= 6
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Mathematics question from Train
1. A 250 m long train is running at a speed of 55 Km/hr. It crossed a platform of length 520 m in ? (Its a Previously asked on SSC 2012 exam) (*without a train question it is impossible to conduct an exam, I think you got, what I mean)
a) 40.4 sec b) 40.5 sec
b) 50.4 sec c) 50.5 sec
Speed = 55 Km/hr
(to convert km/hr in to M/s)
= 55 x 5/18 M/s
Distance = 250 m + 520 m ( If questions is about train crossing a post you need to consider only the length of Train, )
= 770 m
Time = Distance / Speed
= 770 x 18 / (5 x 55)
= 50.4 sec
Answer: b) 50.4 sec
Mathematics question from Work and Time
1. A can do a piece of work in 10 days and B alone can do it in 15 days. How much time will both take to finish the work ?
This question can be solved by different methods. We need to conserve time in exams so solving this problem using equations is the good idea.
Time taken to finish the job = XY / (X + Y)
= 10 x 15 / (10 + 15)
= 150 / 25
= 6 days
2. A and B together can do a piece of work in 10 days. B alone can finish it in 20 days. In how many days can A alone finish the work ?
Time taken by A to finish the work = XY/(Y-X)
= 10 x 20 / (20-10)
= 200/10
= 20 days
Mathematics question from Simple & Compound Interest
1. Find the difference between the Simple Interest and Compound Interest for an amount of 50,000 at 10% of interest rate for 2 years ?
If you try to solve this problem without using Equation, You gonna spend too much time for this question.
Difference between SI and CI for 2 years = P (R/100)2
= 50000 x 10/100 x 10/100
= 500
Equation to find Difference between SI and CI for 3 years = P (R/100)2 ( 3 + R/100 ) Equation to find Difference between SI and CI for 4 years = P (R/100)2 ( 4 + R/100 )
Equation to find Difference between SI and CI for 5 years = P (R/100)2 ( 5 + R/100 )
Mathematics question from LCM & HCF
1. The LCM and HCF of two numbers are 8 and 48 respectively. If one of them is 24, Find the other ?
HCF x LCM = Product of Numbers
8 x 48 = 24 x the other number
other number = (8 x 48) / 24
other number = 16
* Previously asked maths questions from numbers for competitive exams
1. Sum of two number = 16 and product = 48, find the difference of the two number ??
To solve this question, you can use the equation,
(X-Y)2 = (X+Y)2 - 4 XY
(X-Y)2 = (16)2 - 4 x 48
(X-Y)2 = 256 - 192
(X-Y)2 = 64
X-Y = 8
You can find one more maths question from this category here.. Solved maths question
* newly updated
More questions will be added soon. If you have any maths questions, please add it as comment.
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