Forwarded from Deleted Account
3years == 5085
1 years == 1695
x•0.15+(12800-x)•0.12=1695
0.03x+1536=1695
0.03x=159
x=5300
Answer is D
1 years == 1695
x•0.15+(12800-x)•0.12=1695
0.03x+1536=1695
0.03x=159
x=5300
Answer is D
Forwarded from Deleted Account
1/A+1/B=1/19
A=1/3•B
1/A+1/3A=1/19
A=76/3
B=1/3•76/3=76.
19-7=12 => 12/19
76•12/19=4•12=48 days.
A=1/3•B
1/A+1/3A=1/19
A=76/3
B=1/3•76/3=76.
19-7=12 => 12/19
76•12/19=4•12=48 days.
Forwarded from Deleted Account
x^lgx/2=(x/10)²
100x^lgx/2=x²
lg100•x^(lgx/2)=lgx²
2+lgx^(lgx/2)=lgx²
2+0.5lgx•lgx=lgx²
lg²x-4lgx+4=0
lgx=2
x=100
100x^lgx/2=x²
lg100•x^(lgx/2)=lgx²
2+lgx^(lgx/2)=lgx²
2+0.5lgx•lgx=lgx²
lg²x-4lgx+4=0
lgx=2
x=100
Forwarded from Deleted Account
3/4+5/(4•9)+7/(9•16)+9/(16•25)+..=
3/4+1/4-1/9+1/9-1/16+1/16-1/25+..
3/4+1/2²-1/3²+1/3²-1/4²+1/4²-1/5²+..+1/99²-1/100²=
1-1/100²=9999/10000
3/4+1/4-1/9+1/9-1/16+1/16-1/25+..
3/4+1/2²-1/3²+1/3²-1/4²+1/4²-1/5²+..+1/99²-1/100²=
1-1/100²=9999/10000
Forwarded from Deleted Account
10sin⁴a+15cos⁴a=6
10(1-cos²a)²+15cos⁴a=6
25cos⁴a-20cos²a+4=0
cos²a=20/50=0.4
sin²a=1-0.4=0.6
27cosec⁶a+8sec⁶a=27•5³/3³+8•5³/2³=
125•2=250
10(1-cos²a)²+15cos⁴a=6
25cos⁴a-20cos²a+4=0
cos²a=20/50=0.4
sin²a=1-0.4=0.6
27cosec⁶a+8sec⁶a=27•5³/3³+8•5³/2³=
125•2=250
Forwarded from Deleted Account
A=C+9; A=1.5B
B=1.2C
A=1.5B=1.5•1.2C=1.8C
1.8C=C+9
0.8C=9
C=11.25
A=9+11.25=20.25
B=1.2C=13.5
=> A+B+C=20.25+11.25+13.5=45.
B=1.2C
A=1.5B=1.5•1.2C=1.8C
1.8C=C+9
0.8C=9
C=11.25
A=9+11.25=20.25
B=1.2C=13.5
=> A+B+C=20.25+11.25+13.5=45.
Forwarded from Math Holics
LCM and HCF.pdf
533.1 KB
LCM AND HCF
All Previous Years Typewise Questions (ENGLISH)
By - SHUBHAM KUMAR ( Selected in SSC CGL 2018)
For Complete Math Course
Must Subscribe Math holics YouTube channel -
https://youtube.com/c/mathholics
For More Such Contents
Join - @Math_holics
All Previous Years Typewise Questions (ENGLISH)
By - SHUBHAM KUMAR ( Selected in SSC CGL 2018)
For Complete Math Course
Must Subscribe Math holics YouTube channel -
https://youtube.com/c/mathholics
For More Such Contents
Join - @Math_holics
Forwarded from Deleted Account
1/A+1/B=1/9;
A=B-7.5; B=A+7.5
1/(A+7.5)+1/A=1/9
9A+9(A+7.5)=A(A+7.5)
18A+67.5=A²+7.5A
2A²-21A-135=0
A=(21+39)/4=15
And B=15+7.5=22.5
22.5•2/9=45/2•2/9=5days
Ans D
A=B-7.5; B=A+7.5
1/(A+7.5)+1/A=1/9
9A+9(A+7.5)=A(A+7.5)
18A+67.5=A²+7.5A
2A²-21A-135=0
A=(21+39)/4=15
And B=15+7.5=22.5
22.5•2/9=45/2•2/9=5days
Ans D
Forwarded from Quant-Entelechy(The ELITES) (Azizakhon Turakhujaeva)
Forwarded from MATEMATIK TESTLAR | Shopõlatov Shomurod