4. Pramod bought a mobile phone for 7890. His friend, Sonu, bought a mobile phone
which cost him8500 more. Find the amount Sonu paid for buying the mobile phone.
Answers
Given:
Pramod bought a mobile phone for 7890. His friend, Sonu, bought a mobile phone which cost him 8500 more.
To find:
The amount Sonu paid for buying the mobile phone.
Solution:
The cost of a mobile phone bought by Pramod = Rs. 7890
Let "x" be the cost of the mobile phone bought by Sonu.
Sonu bought a mobile phone which cost him 8500 more. So, the equation will be,
[Cost of Sonu's phone] = [Cost of Pramod's phone] + 8500
⇒ x = Rs. 7890 + Rs. 8500
⇒ x = Rs. 16390
Thus, the amount Sonu had paid for buying the mobile phone is →
Rs. 16390.
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