Question : What smallest positive number should be subtracted from 2 and 3 so that 4 is the third proportion to them?
Option 1: 1
Option 2: 2
Option 3: 4
Option 4: 3
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 1
Solution : Let the number subtracted be $x$. $(2-x)$ : $(3-x)$ :: $(3-x)$ : $4$ ⇒$\frac{(2-x)}{(3-x)} = \frac{(3-x)}{4}$ ⇒$(3-x)^2 = 4(2-x)$ ⇒ $x^2-6x+9 = 8-4x$ ⇒ $x^2-2x+1=0$ ⇒ $(x-1)^2=0$ ⇒ $x = 1$ Hence, the correct answer is 1.
Candidates can download this ebook to know all about SSC CGL.
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Question : Which smallest positive number should be subtracted from each of 9 and 13 so that 18 is the third proportion to them?
Question : Find the smallest number that can be subtracted from 148109326 so that it becomes divisible by 8.
Question : What is the smallest number that should be added to 756896 to obtain a multiple of 11?
Question : What is the least number subtracted from 3401, so it is completely divisible by 11?
Question : What is the smallest number which can be added to 9454351626 so that it becomes divisible by 11?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile