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705-805 (Hard)|   Arithmetic|      
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MathRevolution
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Which of the following is closer to 0.5+0.05? 13 Jun 2016, 01:15
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C
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75% (hard)

Question Stats:

51% (01:41) correct 49% (01:36) wrong based on 411 sessions

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Which of the following is closer to √0.5+√0.05?

A. 0.5
B. 0.7
C. 0.9
D. 1.1
E. 1.2
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C
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Which of the following is closer to 0.5+0.05? 13 Jun 2016, 07:01
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MathRevolution
Which of the following is closer to √0.5+√0.05?
A. 0.5
B. 0.7
C. 0.9
D. 1.1
E. 1.2

*An answer will be posted in 2 days.
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Look for perfect square closer to given terms....
\(\sqrt{0.5}=\sqrt{0.50} = \sqrt{0.49} = 0.7\)...
\(\sqrt{0.05} = \sqrt{0.04} = 0.2\)...
ans = 0.7 + 0.2 = 0.9...

C
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Which of the following is closer to 0.5+0.05? 14 Jun 2016, 08:56
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√0.5+√0.05=approximately √0.49+√0.04=0.7+0.2=0.9. Hence, the correct answer is C.
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Which of the following is closer to 0.5+0.05? 03 Mar 2017, 01:53
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(0,5)^1/2 + (0,05)^1/2= (5*1/10)^1/2+(5*1/100)^1/2=((~2,25)*(~1/3))+(2,25*1/10)=0,75+0,225=0,975 which is closer to 0,9
To save time when reasoning such kind of problems that require to extract imprefect roots, it's useful to know approximate values of square roots of at least 1st 10 numbers such as 2=1,4; 3=1,7; 5=2,25; 7=2,64 etc.
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Which of the following is closer to 0.5+0.05? 03 Mar 2017, 11:55
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√5/10 + √5/100
√1/2 + √1/20
1/1.4 + 1/4.5
0.71 + 0.22
0.93

C is the correct answer.
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Which of the following is closer to 0.5+0.05? 05 Mar 2017, 10:01
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Apologies for grave digging, but could someone help me out with where I am going wring here. Set it up as follows:

√0.5+√0.05=x
.5+.05=X^2
.55=X^2

X is between .7 (.49) and .8 (.64). Consequently I picked B
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Which of the following is closer to 0.5+0.05? 26 Aug 2021, 07:12
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MathRevolution
Which of the following is closer to √0.5+√0.05?
A. 0.5
B. 0.7
C. 0.9
D. 1.1
E. 1.2

*An answer will be posted in 2 days.
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it requires a simplle simple simplification

√0.5+√0.05 = 1/√2 + √5 / 10

=> 0.7 + 0.22 = 0.92

Therefore IMO C
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Which of the following is closer to 0.5+0.05? 12 Sep 2025, 12:58
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