Question

5.1.107 Question Help An investment of $70,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% Interest, the second 6%, and the third 9%. Total interest from the investments was $5220. The interest from the first investment was 2 times the interest from the second. Find the amounts of the three parts of the investment. The first part of the investment was $

Answer 1

given total investrosent = $70,000 from the problem nty+z=$70,000 interest rate on n u 8%. 0.0PX interest rak un y is by. 0.06% interest sak on Z is 9% 0:09Z total interest Si tescuepsonu us $5220 09081 +0.06% +0.092=5220 the interest from investment = 2 x interest from and must 0:08 X = 2x0064 0.087 0.129 2 0612 6등 008 39 + y + z = = 70 000 3y +24+22 =(70,000)2=> 54+27 = 1,40000 ) 0:08x34 + 0.06y +009 7=5220 0.184 +0.092= 5220 184 +92 = 5,22000 (2) on solving (1X (2) we get - y =$24,000 iz Z$10,000 - Mo 3 x 24.000 = $36,000 first part of investment is $36,000