Rs.1500 is divided into two parts such that if one part is invested at 6% and the other at 5% the whole annual interest from both the sum is Rs.85. How much was lent at 5% ?

Question

নিচের অপশন গুলা দেখুন

• Rs. 500
• Rs. 245
• Rs. 635
• Rs. 1250

Answer 1

সঠিক উত্তর হচ্ছে: Rs. 500

ব্যাখ্যা: (kx5x1)/100 + [(1500 - k)x6x1]/100 = 85 =>5k/100 + 90 – 6k/100 = 85
=>k/100 = 5
=> k = 500