1. If A = Axi+ Ayj then tan tita =
Answers
Answer:
I hope T= tan +tita
Explanation:
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Explanation:
Given:
Three numbers A,B and C in the ratio 1:2:3
A and B are increased by 10% and 20% respectively
To find:
How much by C increased
Solution:-
Let A,B and C be x,2x and 3x respectively
average = \frac{x + 2x + 3x}{3} = 600average=
3
x+2x+3x
=600
\frac{6x}{3} = 600
3
6x
=600
6x = 18006x=1800
x = 300x=300
A=300,B=600 and C=900
A increased by 10%
300 \times (\frac{1 + 10}{100})300×(
100
1+10
)
300 \times \frac{110}{100} = 330300×
100
110
=330
B decreased by 20%
600 \times (\frac{1 - 20}{100})600×(
100
1−20
)
600 \times \frac{80}{100} = 480600×
100
80
=480
Now
Average increased by 5%
600 \times (\frac{1 + 5}{100})600×(
100
1+5
)
600 \times \frac{150}{100} =630600×
100
150
=630
•New average=630
Total average
\frac{330 + 480 + c}{3} = 630
3
330+480+c
=630
810 +c = 630 \times 3810+c=630×3
810 + c = 1890810+c=1890
c = 1890 - 810c=1890−810
= 1080=1080
C increased by 180
As 1080-900=180Hb