model 1 find largest and smallest value Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 5 EXERCISES
The following question based on power, indices and surds topic of quantitative aptitude
(a) $√^6{6}$
(b) $ √2$
(c) $√^3{3}$
(d) $√^4{5}$
The correct answers to the above question in:
Answer: (d)
$√2, √^3{3}, √^4{5}, √^6{6}$
LCM of orders 2,3,4, 6 = 12
$(2)^{1/2}=2^{6/12}=√^12{2^6}=√^12{64}$
$√^3{3}=√^12{3^4}=√^12{81}$
$√^4{5}=√^12{5^3}=√^12{125}$
$√^6{6}=√^12{6^2}=√^12{36}$
The greatest number = $√^4{5}$
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Read more largest and smallest value Based Quantitative Aptitude Questions and Answers
Question : 1
Out of the numbers 0.3, 0.03, 0.9, 0.09 the number that is nearest to the value of $√{0.9}$ is
a) 0.9
b) 0.3
c) 0.03
d) 0.09
Answer »Answer: (a)
Question : 2
Arranging the following in descending order, we get $√^3{4}, √2, √^6{3}, √^4{5}$
a) $√2>√^6{3}>√^3{4}>√^4{5}$
b) $√^3{4}>√^4{5}>√2>√^6{3}$
c) $√^4{5}>√^3{4}>√^6{3}>√2$
d) $√^6{3}>√^4{5}>√^3{4}>√2$
Answer »Answer: (b)
$√^3{4}, √2, √^6{3}, √^4{5}$
LCM of indices = LCM of 3,6, 4 and 2 = 12
$√^3{4}=(4)^{1/3}=(4)^{1/12}=√^12{4^4}=√^12{256}$
$√2=(2)^{1/2}=√^12{2^6}=√^12{64}$
$√^6{3}=√^12{3^2}=√^12{9}$
$√^4{5}=√^12{5^3}=√^12{125}$
Clearly,$√^3{4}>√^4{5}>√2>√^6{3}$
Question : 3
Which of the following is the largest number ? $√2, √^3{3}, √^4{4}, √^6{6}$
a) $√^4{4}$
b) $√2$
c) $√^3{3}$
d) $√^6{6}$
Answer »Answer: (c)
$√2, √^3{3}, √^4{4}, √^6{6}$
LCM of 2, 3, 4 and 6 = 12
$√2 =(2)^{1/2} =(2)^{6/12}$
$= (2^6)^{1/12}=√^12{2^6}=√^12{64}$
$√^3{3}=√^12{3^4}=√^12{81}$
$√^4{4}=√^12{4^4}=√^12{64}$
$√^6{6}=√^12{6^2}=√^12{36}$
Question : 4
Which is greater $√^3{2}$ or $√3$ ?
a) $√3$
b) Cannot be compared
c) $√^3{2}$
d) Equal
Answer »Answer: (a)
$√^3{2}$ or $√3$
$√^3{2} =2^{1/3}=2^{2/6}=√^6{4}$
$√{3} =3^{1/2}=3^{3/6}=√^6{27}$
Question : 5
Among $√2, √^3{3}, √^4{5}, √^3{2}$ which one is the greatest ?
a) $√^3{3}$
b) $ √^4{5}$
c) $√2$
d) $√^3{2}$
Answer »Answer: (b)
LCM of 2, 3, 4, 3 = 12
Thus $√2 = (2^6)^{1/12}=√^12{64}$
$√^3{3} = (3^4)^{1/12}=√^12{81}$
$√^4{5} = √^12{5^3}=√^12{125}$
$√^3{2}=√^12{2^4}=√^12{16}$
Obviously, $√^4{5}$ is the greatest = 0.05
Question : 6
The greatest among the numbers $3√2, 3√7, 6√5, 2√20$ is
a) $6√5$
b) $3√2$
c) $3√7$
d) $2√20$
Answer »Answer: (a)
$3√2, 3√7, 6√5, 2√20$
$3√2=3×1.4=4.2$
$3√7=3×2.6=7.8$
$6√5=6×2.2=13.2$
$2√20=2×4.5=9$
GET power, indices and surds PRACTICE TEST EXERCISES
model 1 find largest and smallest value
model 2 based on simplification
model 3 based on positive and negative exponent
model 4 simplifying roots with values
model 5 simplifying roots of roots
power, indices and surds Shortcuts and Techniques with Examples
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model 1 find largest and smallest value
Defination & Shortcuts … -
model 2 based on simplification
Defination & Shortcuts … -
model 3 based on positive and negative exponent
Defination & Shortcuts … -
model 4 simplifying roots with values
Defination & Shortcuts … -
model 5 simplifying roots of roots
Defination & Shortcuts …
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