Question : If $a: b=3: 7$, then $(2 a+3 b):(3 a+2 b)$ is:
Option 1: $27:23$
Option 2: $23:29$
Option 3: $21:29$
Option 4: $21:23$
New: SSC CHSL Tier 2 answer key released | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: $27:23$
Solution : Given $a:b=3:7$ Let $a=3k$ and $b=7k$ for some constant $k$. Now, $(2 a+3 b):(3 a+2 b)$ $=\{2(3k)+3(7k)\}:\{3(3k)+2(7k)\}$ $=(6k+21k):(9k+14k)$ $=27k:23k$ $=27:23$ Hence, the correct answer is $27:23$.
Candidates can download this e-book to give a boost to thier preparation.
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Question : If $a+b+c=5$ and $a^2+b^2+c^2=15$, then find the value of $a^3+b^3+c^3-3 a b c-27$.
Question : If $K+\frac{1}{K}=-3$, then what is the value of $\left(\frac{K^6+1}{K^3}\right)+\left(\frac{K^4+1}{K^2}\right)$?
Question : Directions: If A = 1, HAT = 29, then PAN = ?
Question : If $3 \operatorname{cosec} A=7$, then what is the value of $\cos A \tan A$?
Question : If (a + b + c) = 7 and ab + bc + ca = 12, find the value of a2 + b2 + c2.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile