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`a/3 = b/4 = c /7 = ( a - 2b+ 3c )/( --- ) = ( --- ) /( 6 -8 + 14 )`

The sum of (6a + 4b - c + 3), (2b - 3c + 4), (11b - 7a + 2c - 1) and (2c - 5a - 6) is

Add: 3a - 4b + 4c, 2a + 3b - 8c, a - 6b + c

Add: 6a + 8b - 5c, 2b + c - 4a and a - 3b - 2c.

If a : b = 3 : 7 and b : c = 14 : 5, then find a : b : c.

If a : b = 3 : 7 and b : c = 14 : 5, then find a : b : c.

Given that A = {2,4,6,7,8} and B = {1,2,3,4} Find A Delta B . The following are the steps involved in sovling the above problem. Arrange them in sequential order. (A) A Delta B = (A - B) uu (B - A) (B) A - B = {2,4,6.8} - {1,2,3,4} and B-A = {1,2,3,4} - {2,4,6,7,8} (C ) A Delta B = {6,7,8} uu {1,3} = {1,3,6,7,8} (D) A - B = {6,7,8} and B - A = {1,3}

Fill in the blanks (i) If A : B = 2 : 3 and B : C = 4 : 5 then C : A = ……….. (ii) If 16% of A = 20% of B, then A : B = …………. (iii) If A = (1)/(3)B and B = (1)/(2)C , then A : B : C ……….. If A : B = 5 : 7 and B : C = 6 : 11 then A : B : C = ……….