Proportion in real situations

Exercise and reference answers

Matching pairs

1. Left

   Map1:25000;4cm means

   Right

   1 km

2. Left

   A:B2:5;B:C3:4;sum205:A

   Right

   30

3. Left

   A6000×10mo;B10000×4mo;25000:A

   Right

   15000

4. Left

   30L milk:water2:1;swap6Lforwater

   Right

   8:7

5. Left

   200 rises20%,then falls20%

   Right

   192

6. Left

   Spend80%;income+25%;spend+10%

   Right

   Savings rise85%

Instructions

Calculate each result; amounts are in rupees.