I'm not sure. Don't be angry but this is my first time on this app but it helps a lot and i would also like to help but it seems that I'm the one who needs help.
Answer:
![= 2250](https://tex.z-dn.net/?f=%20%3D%202250)
Step-by-step explanation:
Let total passengers be x
At station A passenger got down
x at 40%=x × 40/100=2x/5
Now remaining,
x-2x/5 = 3x/5
At station B passenger got down
3x/5 of 60 =3x/5 × 60/100=9x/25
= 3x/5 - 9x/25 =6x/25
x=25×540/6
=2250
Answer:
the eldest sister is unconcerned about the journey while the youngest sister thinks something is wrong
B)
E = mc^2
E = 7 * 5^2
E = 7 * 25
E = 175
c)
b = sqrt (c/d)
b = sqrt (100/4)
b = sqrt (25)
b = 5
<u>Answer:</u>
Area of kite is 30 sq units.
<u>Solution:</u>
Note: Refer the image attached
From the given,
AC = 10 ; BD = 6
Kite is a quadrilateral as it has two equal adjacent sides.
The formula for the area of quadrilateral (kite) when both the diagonals are given is
![\text { area of kite }=\frac{1}{2} \times d_{1} d_{2}](https://tex.z-dn.net/?f=%5Ctext%20%7B%20area%20of%20kite%20%7D%3D%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%20d_%7B1%7D%20d_%7B2%7D)
Here AC is
and BD is ![d_{2}](https://tex.z-dn.net/?f=d_%7B2%7D)
On substituting the given values we get
![area = \frac{1}{2}\times10\times6 = \frac{60}{2}=30 sq units](https://tex.z-dn.net/?f=area%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%5Ctimes10%5Ctimes6%20%3D%20%20%5Cfrac%7B60%7D%7B2%7D%3D30%20sq%20units)