Question

26, एक वर्गाकार कमरे के फर्श पर 30 cm चौड़ी दरी ₹360 प्रति मीटर
की दर से बिछाने का कुल खर्च ₹600000 है, तो कमरे का विकर्ण
कितना होगा?
(A) 250m
(B) 400m
(C) 500m
(D) 500 /2m​

Answer 1

✨✨✨ANSWER✨✨✨✨

breadth=30 cm=0.3m

price of the strip having 0.3 m breadth and 1m lenght =360 Rs

i.e.,the price of strip of area (0.3*1)m^2 =0.3 m^2 is =360 Rs

therefore .....price of strip of area1m^2 is

$\frac{360}{0.3} = 1200 \: \:rs$

Now, the area of the full strip= area of the floor

$= \frac{600000}{1200} \: \: m {}^{2} \\ = 500 \: \: m {}^{2}$

answer is 500 m^2 ......option(c).....✨✨

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Hardly I understood this ....hehehehee