Model 3 Simplification based on cube & cube root Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 4 EXERCISES
The following question based on simplification topic of quantitative aptitude
(a) $1/5$
(b) $1/3$
(c) $1/4$
(d) $1/15$
The correct answers to the above question in:
Answer: (a)
$√^3{7/875} = (7/875)^{1/3}$
= $(1/125)^{1/3} = 1/5$
Discuss Form
Read more problems based on cubes and roots Based Quantitative Aptitude Questions and Answers
Question : 1
By what least number should 675 be multiplied so as to obtain a perfect cube number ?
a) 40
b) 3
c) 24
d) 5
Answer »Answer: (d)
675 = 5 × 5 × 3 × 3 × 3
∴ Required number = 5
Question : 2
$√^3{19/513}$ is equal to
a) $1/√3$
b) $1/9$
c) $1/√27$
d) $1/3$
Answer »Answer: (d)
$√ ^3{19/513} = √ ^3{1/27} = 1/3$
Question : 3
If $√^3{3^n}$ = 27, then the value of n is :
a) 3
b) 9
c) 1
d) 6
Answer »Answer: (b)
$√^3{3^n}$ = 27
$(3)^{n/3} = 3^3$
$n/3$ = 3 ⇒ n = 3 × 3 = 9
Question : 4
$√^3{15612 + √{154 + √{225}}}$ is equal to
a) 125
b) 15
c) 75
d) 25
Answer »Answer: (d)
Expression
= $√^3{15612 + √{154 + √{225}}}$
= $√^3{15612 + √{154 + 15}}$
= $√^3{15612 + 13}$
= $√^3{15612}$ = 25
Question : 5
$√^3{ √{0.000064}}$ is equal to
a) 0.2
b) 0.0002
c) 0.02
d) 0.002
Answer »Answer: (a)
$√^3{ √{0.000064}} = √^3{0.008}$
=$√^3{0.2 × 0.2 × 0.2}$ = 0.2
Question : 6
The smallest positive integer n, for which 864n is a perfect cube, is :
a) 4
b) 1
c) 3
d) 2
Answer »Answer: (d)
2 | 864 |
2 | 432 |
2 | 216 |
2 | 108 |
2 | 54 |
3 | 27 |
3 | 9 |
3 |
For 864n to be a perfect cube, n = 2
GET simplification PRACTICE TEST EXERCISES
Model 1 Simplification using VBODMAS
Model 2 Simplification based on square & square root
Model 3 Simplification based on cube & cube root
Model 4 Simplification with continued fraction
simplification Shortcuts and Techniques with Examples
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
Recently Added Subject & Categories For All Competitive Exams
100+ Quadratic Equation Questions Answers PDF for Bank
Quadratic Equation multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
IBPS Aptitude Linear Equations MCQ Questions Answers PDF
Linear equations multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
New 100+ Compound Interest MCQ with Answers PDF for IBPS
Compound Interest verbal ability questions and answers solutions with PDF for IBPS RRB PO. Aptitude Objective MCQ Practice Exercises all competitive exams
Continue Reading »
100+ Mixture and Alligation MCQ Questions PDF for IBPS
Most importantly Mixture and Alligation multiple choice questions and answers with PDF for IBPS RRB PO. Aptitude MCQ Practice Exercises all Bank Exams
Continue Reading »