Mr.X invests TK. 2400 in the Moder4n Bank at 5%. How much additional money must he invest at 8% so that the total annual income will be equal to 6% of his entire investment?

Created: 5 years ago | Updated: 1 year ago

Updated: 1 year ago

TK.1200

TK.3000

TK.1000

TK.3600

TK.2400

Southeast Bank Ltd Southeast Bank Ltd - Probationary Officer - 29.04.2011 গণিত

Explanation

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Best Ans:

We can let x = the amount of money invested at 8%, making her entire investment equal to (2,400 + x). We can create the following equation:

0.05(2,400) + 0.08x = 0.06(2,400 + x)

= > 120 + 0.08x = 144 + 0.06x

= > 0.02x = 24

= > 2x = 2400

∴x = 1,200

5 years ago

1 0

Md Azizur Rahman

FOUNDER OF SATT

গণিত

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