Question

I invested twice as much money in technology shares as I invested in mining shares.
Technology shares earn me 10% yearly and mining shares earn me 9% yearly. My
yearly income from these shares is $1450: Find how much I invested in each type of
share.

Answer 1

Step-by-step explanation:

Let,

• Amount invested in mining shares ($)= x
• Amount invested in technology share ($) = 2x

Yearly Earnings of mining shares ($) = 9 % of x

Yearly Earnings of technology share ($) = 10 % of 2x

Yearly income = $ 1450

★ According to the Question :

⇒ 9 % of x + 10 % of 2x = 1450

⇒ 0.09x + 0.2x = 1450

⇒ 0.29x = 1450

⇒ x = 1450 / 0.29

⇒ x = 5000

Amount invested in mining shares ($)= 5000

• Amount invested in technology share ($) = 2x

⇒ 2x

⇒ 2 × 5000

⇒ 10000

Amount invested in technology share ($) = 10000

Therefore,

Amount invested in mining shares $ 5000 and in technology shares $ 10000.