The ratio of tin and zinc in an alloy is 3:4.In 21 gm of alloy,find the quantity of (I) tin and (II) zinc.
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Step-by-step explanation:
T
=
4
3
T= No. of kgs of Tin in alloy
Z= No. of kgs of zinc in alloy
T+Z=21 kg
4
3Z
+Z=21
⇒
4
7Z
=21
⇒Z=12kg
⇒T=9kg
Quantity of Tin in alloy=9kg
Quantity of zinc in alloy=12kg.
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