Mr. and Mrs. Johnson approached their building society for a mortgage of £150,000 to put towards the purchase of their new home. The building society offered them an endowment mortgage with an...

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Extracted text: Mr. and Mrs. Johnson approached their building society for a mortgage of £150,000 to put towards the purchase of their new home. The building society offered them an endowment mortgage with an interest rate of 15% p.a. compounded annually on the loan and an endowment scheme with a guaranteed maturity value of at least £150,000 with a growth rate of 10% p.a. Annual compounding is undertaken by the building society over 25 years. How much will the loan cost them?