A portion of the 7,200 is invested at a 4% annual return , while the remainder is invested at a 5% annual return. If the annual income from both portions is the same, what is the total income from the two investments?

Tk. 166

Tk. 320

Tk. 400

Tk. 720

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উত্তর: Tk. 320

Let the investments be A and (7200 - A) respectively. Interest, I = P n r Now, A × 1 × 4/100 = (7200 - A) × 1 × 5/100 or, 4A = 5×7200 - 5A or, 5A + 4A = 36000 or, 9A = 36000 or, A = 4000 So, total income = A × 1 × 4/100 + (7200 - A) × 1 × 5/100 = 4000×4/100 + (7200 - 4000)×5/100 = 160 + 160 = 320 TK

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কোর্স

অনুসন্ধান করুন

বিস্তারিত সমাধান

A portion of the 7,200 is invested at a 4% annual return , while the remainder is invested at a 5% annual return. If the annual income from both portions is the same, what is the total income from the two investments?

সম্পর্কিত বিষয় সমূহ

সম্পর্কিত অন্যান্য প্রশ্ন

If u> t, r> q , s>t, t>r, which of the following must be true?

The price of a certain television set is discounted by 10 percent, and the reduced price is then discounted by 10 percent. The series of successive discount is equivalent to a single discount of -

A pen was sold at 15% loss. If the selling price was Tk. 8 more, than the seller could have made a profit of 10%. What was the purchase price of pen?

Ms. Lyla wants to put up fencing around three sides of her rectangular garden and have a side of 20 meter unfenced. If the yard has an area of 680 square meters, how many yards of fencing does she need?

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In a sugar-water solution, the ratio of water to sugar is 8:3. If you add 2 Kgs of sugar, the ratio become 2:1. What was the amount of sugar in the original solution?

If the area of rectangle R with length 4 feet is equal to the area of square S, which has a perimeter of 24 feet , then the perimeter of rectangle R equals -

What percent of 25 is 0.20?

If N and P are both odd numbers, which of the following numbers must be an even number?