$3,000 is invested in an account paying 4% interest and twice that amount is invested at 6%.
Which of the following expressions represents the amount of interest earned on the money invested at 6%?

0.06(3,000)
0.06(6,000)
2(3,000)

Question

$3,000 is invested in an account paying 4% interest and twice that amount is invested at 6%.
Which of the following expressions represents the amount of interest earned on the money invested at 6%?


0.06(3,000)
0.06(6,000)
2(3,000)

anonymous · Answer

Total amount of money invested in the 6% account is 'twice 3000 USD', so 6000 USD. The interest is 6%, which implies that 6 'per hunderd', so 0.06 is earned for every USD.

In total, the interest is therefore 0.06 * 6000 = 360 USD

anonymous · Answer

so b