PDF chapter test TRY NOW

1. Find whether 12, 24, 18, 36 are in order that can be expressed as two ratios that are in proportion.
 
Answer:
 
The given numbers are .
 
2. Write the mean and extreme terms in the following ratios and check whether they are in proportion.
 
(i) 78 litre is to 130 litre and 12 bottles is to 20 bottles.
 
Answer:
 
Extremes =
 
Means =
 
The given numbers are .
 
(ii) 400 gm is to 50 gm and 25 rupees is to 625 rupees.
 
Answer:
 
Extremes =
 
Means =
 
The given numbers are .