If the age of ‘x’ is 4 times of the age of ‘y’ then represent the information as a linear equation in two variables is…. 

Correct Answer - `5x-2y=0`

Correct Answer - (i) 0.28 (ii) 0.4 (iii) 0.32

Given that \(\vec a, \vec b\) and \(\vec c\)are unit vectors. i.e., |\(\vec a\)| = |\(\vec b\)|  = |\(\vec c\)| = 1 And \(\vec a\) + \(\vec b\) + \(\vec c\) = \(\vec 0\) Then \((\vec a+\vec b+\vec c).(\vec a+\vec b+\vec c)=\vec 0.\vec...

Correct option is (C) x + y = 24 Let both numbers are x and y. \(\therefore\) Their sum = x+y \(\therefore\) x + y = 24    \((\because\) Given that sum of both numbers is 24)

Correct option is  B) 15 years

Correct option is (D) none Let Ramu's present age be x years. \(\therefore\) Ramu's age before 4 years = (x - 4) years Ramu's age after 12 years = (x + 12) years \(\therefore\) x+12 = 3(x-4) \(\Rightarrow\) x+12...

Let the present age of Shikha be ‘a’ years.  Given, product of Shikha’s age five years ago and her age 8 years later is 30  ⇒ (a – 5)(a + 8) =...