Question : The mean proportion between 7 and 112 is:
Option 1: 42
Option 2: 28
Option 3: 21
Option 4: 14
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: 28
Solution : The mean proportion of two numbers is equal to the square root of the product of two quantities in a ratio. Let $x$ be the mean proportion of 7 and 112. Then, $x$ = $\sqrt {7 × 112}$ ⇒ $x$ = $\sqrt {7 × 7 × 4 × 4}$ ⇒ $x$ = 28 Hence, the correct answer is 28.
Candidates can download this ebook to know all about SSC CGL.
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Question : Find the mean proportion between $(6+\sqrt{8})$ and $(3-\sqrt{2})$.
Question : The value of $1 \frac{3}{4}+1 \frac{5}{7} \div 2 \frac{3}{7} \times 2 \frac{3}{7}=$?
Question : The arithmetic mean of the following numbers 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7 is:
Question : The fourth proportion of the numbers 8, 12, and 14 is:
Question : Three circles of radius 7 cm are kept touching each other. The string is tightly tied around these three circles. What is the length of the string?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile