1.

P:q=5:7 and p-q=-4 , then the answer of 3p+4q

Answer» GIVEN, p:q = 5:7
So, LET p = 5X & q = 7x

Given, p - q = -4
Thus, 5x - 7x = -4. x = -4/-2 = 2.

Therefore, p = 10 & q = 14.

So, 3p + 4q = 3×10 + 4×14 = 30 + 56 = 86


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