1.

n two allbys A and 8, tle ratio Znc andin uInthe new ally

Answer»

Zinc : Tin

A 5x : 2x = 7x

B 3y : 4y = 7y

=> A = 7x = 7 kg.

x = 1 kg

∴∴Zinc in Alloy A => 5 kg

Tin in Alloy A => 2 kg.

=> B => 7y = 21 kg.

y = 3 kg.

Zinc in alloy B =>3×3==9kg

Tin in alloy B =>3×4=12kg

∴∴after mix-up the ratio of zinc and tin in new alloy



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