Question
[34]. Two square playgrounds are to be fenced along one side each. The first playground covers 144 square metres and the second covers 81 square metres. What is the total length of fencing needed for one side of each playground taken together? / दो वर्गाकार खेल के मैदानों में से प्रत्येक की एक भुजा पर बाड़ लगानी है। पहला मैदान 144 वर्ग मीटर और दूसरा 81 वर्ग मीटर क्षेत्रफल घेरता है। दोनों मैदानों की एक-एक भुजा के लिए कुल कितनी लंबी बाड़ चाहिए?
Option 3 : 21
Detailed Solution
सही उत्तर 21 है।
Side of first = √144 = 12 m; side of second = √81 = 9 m; total = 12 + 9 = 21 m. / पहले की भुजा = √144 = 12 मीटर; दूसरे की भुजा = √81 = 9 मीटर; कुल = 12 + 9 = 21 मीटर।
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prepsnap.in • Mock TestQuestion:
[34]. Two square playgrounds are to be fenced along one side each. The first playground covers 144 square metres and the second covers 81 square metres. What is the total length of fencing needed for one side of each playground taken together? / दो वर्गाकार खेल के मैदानों में से प्रत्येक की एक भुजा पर बाड़ लगानी है। पहला मैदान 144 वर्ग मीटर और दूसरा 81 वर्ग मीटर क्षेत्रफल घेरता है। दोनों मैदानों की एक-एक भुजा के लिए कुल कितनी लंबी बाड़ चाहिए?
Correct Answer: 21
Side of first = √144 = 12 m; side of second = √81 = 9 m; total = 12 + 9 = 21 m. / पहले की भुजा = √144 = 12 मीटर; दूसरे की भुजा = √81 = 9 मीटर; कुल = 12 + 9 = 21 मीटर।