Answer:
I am not so sure about the answer but this may help
Step-by-step explanation:
1. A and B
We can see that both triangles are right angle triangle as per information given into picture. So we will prove that they are similar then use properties of similar triangle to find the value of d.
In triangle STV and triangle XWV:
∠STV = ∠XWV { both are equal to 90 degree}
∠TVS = ∠WVX { vertically opposite angles are equal}
Hence by AA (Angle Angle) similarity postulate of the triangles, It is proved that triangle STV and triangle XWV are similar.
We know that ratio of corresponding sides of similar triangles are equal so we can write:


350*180=400d
63000=400d
divide both side by 400
157.5=d
Hence final answer is d=157.5 m.
The idea is to shift the number enough so that you can cancel the repeating digits by subtraction.
_____
Example
0.181818_18 multiplied by 100 gives
18.181818_18
Subtracting the original number gives
18.000000_00 . . . . . . all the repeating digits have been eliminated
When you multiply by 100 and subtract 1 times the original, you have multiplied by 99. Thus the value of the original number is 18/99 or 2/11.
Solution:
<span>20 % profit on $ 1.20 </span>
= $ 20/100 × 1.20
= $ 0.20 × 1.20
<span>= $ 0.24 </span>
<span>Similarly, 20 % loss on $ 1.20 </span>
= $ 20/100 × 1.20
= $ 0.20 × 1.20
= $ 0.24
Therefore, in one pipe his profit is $ 0.24 and in the other pipe his loss is $ 0.24.
Since both profit and loss amount is same so, it’s broke even.
<span>Answer: (a)</span>