Subject
Quantitative Aptitude
Topic
Percentage
Sakshi invests a part of Tk. 12,000 in 12% stock at Tk. 120 and the remainder in 15% stock at Tk. If his total dividend per annum is Tk. 1360, how much does he invest in 12% stock at Tk. 120?
Sakshi invests a part of Tk. 12,000 in 12% stock at Tk. 120 and the remainder in 15% stock at Tk. If his total dividend per annum is Tk. 1360, how much does he invest in 12% stock at Tk. 120?
ক)
Tk. 4000খ)
Tk. 4500গ)
Tk. 5500ঘ)
Tk. 6000Explanation
Let investment in 12% stock be Tk. x. Then, investment in 15% stock = Tk. (12000 - x). So, {(12/120) x x} + {(15/125) x (12000 - x)} = 1360. => x/10 + (3/25) x (12000 - x) = 1360. => 5x + 72000 - 6x = 1360 x 50 => x = 4000.Related questions
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