General Aptitude Numbers Question #4458
Single Choice Not Set

QWhat is the number that, when doubled and then had 5 added, becomes 105 when trebled?

ID: #4458 Numbers 203 views
Question Info
#4458Q ID
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NumbersTopic

Choose the Best Option

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  • A 9
  • B 15
  • C 18
  • D 21
Correct Answer

Explanation

 The number x is such that 3(2x + 5) = 105.

This equation can be rewritten as 6x + 15 = 105.

 Subtracting 15 from both sides of the equation gives us 6x = 90, 
which means that x = 15.

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