If a + b + c = 8, a² + b² + c² = 18 and ab + b c+ ca = 12, then what is the value of a³ + b³ +c³ –3abc?
Given – a + b + c = 8 a² + b² + c² = 18 ab + b c+ ca = 12 then a³ + b³ +c³ –3abc = (a+ b+ c) (a² + b² + c² -ab-b c-ca) = 8 (18-12) =8 ×6=48
A sum of Rs 31866 is divided between A, B and C such that the ratio of shares of A and B is 9:8 and that of A and C is 4:5. The share (in RS) of B is:
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If A:B:C = 2:3:8 and (C - B) = 130, then find the product of 'C' and 'A'.
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A box contains red, blue, and green balls in the ratio of 3:4:5. If there are 60 balls in total, how many blue balls are there?
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