Question

Talio is said to be varying directly and the proportion is called 'direct
sample: If 4 pens cost Rs 20, then what will be the cost of 25 pe​

Answer 1

Step-by-step explanation:

1. It is told they are in direct proportion. So, if k is constant, price/pens= k.
2. Value of k is Rs. 20/ 4= Rs 5.
3. Let the cost of 25 pens be x.
4. Accordingly,Rs. x/ 25= 5

=> Rs. x= 5* 25= 125.

   5. So, cost of 25 pens is Rs. 125.

Mission accomplished!!!!