For the following situation, write the expression describing the situation, identify its terms and find the value of the expression. 
 
A metro train ticket between two stations is \(₹ 40\) for an adult and \(₹20\) for a child. What is the total cost of tickets:
 
(i) for four adults and three children?
 
(ii) for two groups having three adults each?
 
Ans
 
(i)
Expression: \((\)​​​​ \(40)\) ​​ \((\)​​ ​​​ \(20)\)
 
Terms: ​​​​ \(40\),  ​​ ​​​ \(20\)
 
Value: ​
 
(ii)
Expression: \((\)​​​​ \(40)\) ​​ \((\)​​ ​​​ \(40)\)
 
Terms: ​​​​ \(40\),  ​​ ​​​ \(40\)
 
Value: ​