हे गणित UPSC मुख्य परिक्षेतील आहे.फक्त वैभव अगरवाल यानेच सोडवले आहे. सोडवू शकाल?
❓➕❓➕❓=30
1 ,3 ,5 ,7 ,9, 11, 13 ,15
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it is impossible to get an even number by adding three odd numbers. so, odd + odd + odd =/= 30 hence it is an impossible event It is possible only in case of factorial. 3! + 15 + 9 = 30 3! + 11 + 13 = 30
3! Refers 3x2x1 = 6
In odd number it can be represent as 3!
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the answer can be: 7 + ( 1+ 9 ) + 13 = 30 because there is no rule that we cannot use brackets
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