A, B and C invest in the ratio of 3 : 4: 5. The percentage of return on their investments are in the ratio of 6 : 5 : 4. Find the total earnings, If B earns Rs. 100 more than A :
Choices:
A) 2900
B) 7250
C) 2767
D) 1998
E) 2771
Explanation:   2900 B C   investment 3x 4x 5x   Rate of return 6y% 5y% 4y%   Return \inline \frac{18xy}{100} \inline \frac{20xy}{100} \inline \frac{20xy}{100}   Total = (18+20+20)= 
<gadget id="calculator">(18+20+20)</gadget>
<output>58</output>
\inline \frac{58xy}{100}   B's earnings - 2900's earnings= \inline \frac{2xy}{100} = 100   Total earning = \inline \frac{58xy}{100} = 2900   2900nswer: 2900) Rs.2900
<result>A</result>
A, B and C invest in the ratio of 3 : 4: 5. The percentage of return on their investments are in the ratio of 6 : 5 : 4. Find the total earnings, If B earns Rs. 100 more than A :