Find the value expression (750 (x²+y²)/xy). where x is the amount when a sum of y is lent at an unknow interest rate for an unknow period compounded quaterly. Also y is the amount when a sum of 9x is lent under similar condition as above.

There might be typo while typing the question,but it is the question asked in previous year paper of srcc and its there on the cracku App.

thanks in advance