Many aspirants preparing for different banking exams have issues in solving the questions accurately. Especially if we talk about the Quantitative Aptitude section, people have to solve these accurately and in a stipulated time period. Other than reasoning, quant is one section which is a bit complicated and difficult to understand, especially a few important topics, so here in this article we will be discussing Free Simplification Practice Questions & Tips. In here, we will talk about how to approach simplification and approximation questions and what strategy to adopt to solve these correctly. Mentioning below are some important quant topics.
Most Important Quant Topics/Concepts
In order to understand and comprehend the difficulty level of the quant section and questions candidates must attempt the IBPS RRB prelims free mock test. The mock test is followed by detailed analysis and complete answers and solutions.
1. BODMAS Rule
The first thing to keep in mind while solving simplification/approximation questions is the proper application of ‘BODMAS’ rule.
‘BODMAS’ is an acronym that is used to denote the order of operations to be followed while calculating the simplified value of a given expression.
It stands for
B – Brackets
O – Order of power or roots (it also stands for the expression “of”)
D – Division
M – Multiplication
A – Addition
S – Subtraction
Mathematical expressions having multiple operations need to be solved from left to right using this order only i.e. BODMAS
Question 1: What will come in the place of question mark (?) in the given expression?
[{(4608 ÷ 24) ÷ 12} ÷ 4] + 112 + √169 = ?
A) 133
B) 138
C) 143
D) 148
E) None of these
Ans: 2
Solution:
[{(4608 ÷ 24) ÷ 12} ÷ 4] + 112 + √169 = ?
? = [{192 ÷ 12} ÷ 4] + 121+ 13
? = [16 ÷ 4] + 134
? = 4 + 134
? = 138
Hence, option b.
Question 2: What will come in the place of question mark (?) in the given expression?
125 + ? + 272 – 391 = 184 – 215 + 169
A) 124
B) 128
C) 132
D) 136
E) None of these
Ans: 3
Solution:
125 + ? + 272 – 391 = 184 – 215 + 169
? + 397 – 391 = 353 – 215
? + 6= 138
?= 138 – 6
? = 132
Hence, option c.
Question 3: What will come in the place of question mark (?) in the given expression?
2564 ÷ 646 × 162 = 4?
A) 4
B) 8
C) 2
D) 6
E) None of these
Ans: 3
Solution:
2564 ÷ 646 × 162 = 4?
4? = (44)4 ÷ (43)6 × (42)2
4? = 416 ÷ 418 × 44
4? = 416-18+4
4? = 42
? = 2
Hence, option c.
Question 4: What will come in the place of question mark (?) in the given expression?
√225 + √729 – √324 = 20% of ?
A) 120
B) 124
C) 128
D) 132
E) None of these
Ans: 1
Solution:
√225 + √729 – √324 = 20% of ?
0.2 × ? = 15 + 27 – 18
0.2 × ? = 24
? = 24/0.2
? = 120
Hence, option a.
Question 5: What will come in the place of question mark (?) in the given expression?
30% of 150 = 15% of ? + 20% of 180
A) 45
B) 60
C) 75
D) 90
E) 105
Ans: 2
Solution:
30% of 150 = 15% of ? + 20% of 180
0.15 × ? + 0.20 × 180 = 0.30 × 150
0.15 × ? + 36 = 45
0.15 × ? = 9
? = 9/0.15
? = 60
Hence, option b.
Question 6: What will come in the place of question mark (?) in the given expression?
√2116 × 4 + ?3 = 696
A) 8
B) 9
C) 7
D) 6
E) None of these
Ans: 1
Solution:
√2116 × 4 + ?3 = 696
46 × 4 + ?3 = 696
184 + ?3 = 696
?3 = 512
? = 8
Hence, option a.
Question 7: What will come in the place of question mark (?) in the given expression?
12.5% of 4960 + ?% of 2400 = 1580
A) 25
B) 40
C) 50
D) 45
E) None of these
Ans: 2
Solution:
12.5% of 4960 + ?% of 2400 = 1580
620 + ? × 24 = 1580
? × 24 = 960
? = 960/24 = 40
Hence, option b.
Question 8: What will come in the place of question mark (?) in the given expression?
4225% of 40 + 1226 = ?2
A) 56
B) 60
C) 62
D) 58
E) None of these
Ans: 5
Solution:
4225% of 40 + 1226 = ?2
0.4 × 4225 + 1226 = ?2
1690 + 1226 = ?2
?2= 2916
? = 54
Hence, option e.
Question 9: What will come in the place of question mark (?) in the given expression?
?% of 600 – 120 = 82 + 42
A) 40
B) 100/3
C) 50
D) 200/3
E) 25
Ans: 2
Solution:
?% of 600 – 120 = 82 + 42
? × 6 – 120 = 64 + 16
? × 6 = 200
? = 200/6 = 100/3
Hence, option b.
Question 10: What will come in the place of question mark (?) in the given expression?
{(452 – 214 + 72) / 5} × 2 = ?
A) 154
B) 142
C) 124
D) 136
E) None of these
Ans: 3
Solution:
{(452 – 214 + 72) / 5} × 2 = ?
? = (310 / 5) × 2
? = 62 × 2
? = 124
Hence, option c.
Simplification involves reducing mathematical expressions to their simplest form to find the correct answer quickly.
Questions can involve basic arithmetic operations, fractions, decimals, square roots, percentages, and BODMAS rule applications.
BODMAS stands for Brackets, Orders (i.e., powers and square roots, etc.), Division, Multiplication, Addition, and Subtraction. It dictates the order of operations in mathematical expressions.
Practice regularly, familiarize yourself with common shortcuts, and enhance mental math skills.
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