The ratio of ducks and frogs in a pond is 37 : 39 respectively. The average number of ducks and frogs in the pond is 152. What is the number of frogs in the pond ?
Choose the correct choice from the following choices:
A) 148
B) 152
C) 156
D) 144
E) None
Solution:   Ratio of Ducks and Frogs in Pond,   = 37 : 39.   Average of Ducks and Frogs in Pond,   = 152.   So, total number of Ducks and Frogs in the Pond,   = 2* 152= 
<gadget id="calculator">2* 152</gadget>
<output>304</output>
304.   Therefore,   Number of Frogs,= (304 *39)/76= 
<gadget id="calculator">(304 *39)/76</gadget>
<output>156</output>
156.   Answer: Option 156
<result>C</result>
The ratio of ducks and frogs in a pond is 37 : 39 respectively. The average number of ducks and frogs in the pond is 152. What is the number of frogs in the pond ?