The ratio of red boxes to blue boxes in a certain warehouse is 10 to 25. If the number of the red boxes were doubled and the number of blue boxes were increased by 150 the ratio would be halved. How many total boxes are in the warehouse?  Choose the correct choice:
A) 37
B) 74
C) 70
D) 148
E) 244
Ratio = R/B = 10/25 or R = 10/25 B -----------(1)   2R/B+150 = 10/25*1/2 = 1/5 or we can say that 10R=B+150 -------------(2)   solving (1) and (2) we get   B=50 and R = 20   so total boxes is B + R = 50+20= 
<gadget id="calculator">50+20</gadget>
<output>70</output>
70   Hence C. 70 is the correct answer
<result>C</result>
The ratio of red boxes to blue boxes in a certain warehouse is 10 to 25. If the number of the red boxes were doubled and the number of blue boxes were increased by 150 the ratio would be halved. How many total boxes are in the warehouse?