bob went to post office to buy 2 ruper and 5 rupee stamps .he bought 20 stamps in all and paid Rs.55 how many each kind of stamp did he buy
Answers
Answered by
1
Let the no of 2 rupees stamp be x
No of 5 rupees stamp is 20-x
ATP
2x+5 (20-x)=55
2x+100-5x=55
-3x=-45
x=15
No. of 2 rupee coin is 15
No. of 5 rupee x-5
=x-15
=20-15
=5
No of 5 rupees stamp is 20-x
ATP
2x+5 (20-x)=55
2x+100-5x=55
-3x=-45
x=15
No. of 2 rupee coin is 15
No. of 5 rupee x-5
=x-15
=20-15
=5
Similar questions