जर \(\frac{1}{a}:\frac{1}{7} = \frac{1}{{3.43}}:\frac{1}{a}\) , तर a चे मूल्य काय आहे ?

Question

Question

This question was previously asked in

SSC GD 3 Dec 2021 Shift 1 (Official Paper)

Answer 1

दिले:

\(\frac{1}{a}:\frac{1}{7} = \frac{1}{{3.43}}:\frac{1}{a}\)

गणना:

\(\frac{1}{a}:\frac{1}{7} = \frac{1}{{3.43}}:\frac{1}{a}\)

⇒ 7/a = a/3.43

⇒ a ² = 3.43 x 7

⇒ a = \(\sqrt {3.43 \times 7}\)

⇒ a = 4.9 (केवळ सकारात्मक मूल्य लक्षात घेऊन)

∴ a चे मूल्य 4.9 आहे.