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Q.

Find how much longer is the wingspan of a Golden Eagle than the wingspan of a Blue Jay.


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a

100 209  

b

209 100  

c

50 209  

d

209 50   

answer is B.

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Detailed Solution

We need to find out how much longer is the wingspan of a Golden Eagle than the wingspan of a Blue Jay.
The wingspan of Golden Eagle =2 1 2 m  
= 2×2 +1 2 = 5 2 m   The wingspan of Blue Jay = 41 100 m  
The difference in their wingspans = 5 2 41 100  
= 5×50 2×50 41×1 100×1 = 25041 100 = 209 100   So, the wingspan of a Golden Eagle is 209 100 m   longer than the wingspan of a Blue Jay.
Hence, the correct option is 2.
 
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