Yash starts walking from his home and goes 48 m towards the south. Then he turns right and walks 15 m. He again turns right and walks 21 m. He finally turns left and walks 20 m to reach a garden. How far is he now from his office which is 27 m south to his home?
Required distance = 20 + 15 = 35 m.
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The important ore of aluminium is-
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The major constituent of air is
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