The ratio of two quantities is 5 : 8. If each of the quantities is increased by 10, what is the ratio of the new quantities?  Pick:
A) 5:8
B) 50:78
C) 2:3
D) It cannot be determined from the information given.
E) 6:7
Since the ratio is 5:8 we can put the quantities as 5K and 8K.   Moreover increasing quantities implies that the quantities become 5K+10 and 8K+10. So the ratio is (5K+10):(8K+10). The ratio value depend on the value of K. So It cannot be determined from the information given.   The answer is It cannot be determined from the information given.
<result>D</result>
The ratio of two quantities is 5 : 8. If each of the quantities is increased by 10, what is the ratio of the new quantities?