ICSE Class 7 Answered

$begin mathsize 12px style straight A space sum space of space Rs. space 500 space is space in space the space form space of space denominations space of space Rs. space 5 space and space Rs. space 10. space If space the space total space number space of space notes space is space 90 comma space find space the space number space of space notes space of space each space type. end style$ Answer this question

Asked by Topperlearning User | 20 Sep, 2016, 11:11: AM

Expert Answer

$begin mathsize 12px style Total space sum space equals space Rs. space 500 and space total space number space of space notes space equals space 90 Let space the space number space of space notes space of space Rs. space 5 space equals space straight x and space number space of space notes space Rs. space 10 space equals space 90 space minus space straight x According space to space the space condition comma straight x space cross times space 5 space plus space left parenthesis 90 space minus space straight x right parenthesis space cross times space 10 space equals space 500 rightwards double arrow 5 straight x space space plus space 900 space minus space 10 straight x space equals space 500 rightwards double arrow negative 5 straight x space space equals space minus 400 rightwards double arrow straight x space space equals space 80 Hence comma space the space number space of space Rs. space 5 space notes space equals space 80 and space the space number space of space Rs. space 10 space notes space equals space 90 space minus space 80 space equals space 10 end style$