Question

(4)250 मी
एक कमरे की चौड़ाई इसकी ऊँचाई से दोगुनी तथा इसकी
लम्बाई से आधी है। यदि कमरे का आयतन 512 मी हो, लो
कमरे की लम्बाई होगी
(1) 12 मी2016
मी20 मी )32मी
(32
10.20 से
A
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Answer 1

The length of the rectangular room is 16 m

Step-by-step explanation:

Let the breadth of the room be b, length be l and height be h

Given:

B = 2h

h = b/2 ……………….. (1)

Also;

B = ½ l

l = 2b ………………..… (2)

Now;

Volume of the rectangular room = 512 = l x b x h

Substituting Eqs 1 and 2 in the formula

2b x b x b/2= 512

b3 = 512

b = 8 m

The breadth of the room is 8 m.

The length of the room = 2 x breadth = 2 x 8 = 16 m

Thus, the length of the rectangular room is 16 m