10×sine of 60 degrees=8.66 which is the same as B. you can check by finding the square root of 3 and then multiplying that by 5.
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Answer: I think its B
Step-by-step explanation: My friend answered it.
The principal amount is 
<u>SOLUTION:
</u>
Given that, simple interest
;
after 3 years
We have to find the principal.
Now, let the principal amount be p.
Then,
Now, we know that, Balance = Principal amount + Simple Interest
