Aptitude Practice Question and Answer
8 Q: If $$ {x+3y-{2z\over 4}}=6$$ , $$ {x+{2\over 3}}(2y+3z)=33$$ and $$ {1\over 7}{(x+y+z)+2z=9}$$, then what is the value of $$ {46x+131y}$$?
3387 05f2bc64cb57ade01cafa6af6
5f2bc64cb57ade01cafa6af6- 1364false
- 2414true
- 3384false
- 4464false
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Answer : 2. "414"
Q: $${3x+4y-2z+9=17},{7x+2y+11z+8=23}$$ and $$ {5x+9y+6z-4=18}$$ then what is the value of $$ {x+y+z-34}$$?
1072 05f2bc5fcbe9f31290fb3b467
5f2bc5fcbe9f31290fb3b467- 1-45false
- 2-31true
- 3-14false
- 4-28false
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Answer : 2. "-31"
Q: If $${a+b=10}$$ and $$ \sqrt{a\over b}-13=-\sqrt{b\over a}-11$$, then what is the value of $${3ab+4a^2+5b^2}$$?
773 05f2bc59721de6a117aeb589f
5f2bc59721de6a117aeb589f- 1300true
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- 3750false
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Answer : 1. "300"
Q: If $$ {3\sqrt{{1-a}\over{a}}}+9={19-3\sqrt{{a}\over{1-a}}}$$, then what is the value of a?
892 05f2bc53521de6a117aeb57a2
5f2bc53521de6a117aeb57a2- 1$${3\over10},{7\over10}$$false
- 2$${1\over10},{9\over10}$$true
- 3$${2\over5},{3\over5}$$false
- 4$${1\over5},{4\over5}$$false
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Answer : 2. "$${1\over10},{9\over10}$$"
Q: If $$ {a^4+1}={{a^2}\over{b^2}}{(4b^2-b^4-1)}$$,then what is the value of $${a^4+b^4}$$?
861 05f2bc4eecef453383f221d2d
5f2bc4eecef453383f221d2d- 116false
- 22true
- 332false
- 464false
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Answer : 2. "2"
Q: If $$ {x^2-12x+33=0}$$, then what is the value of $${(x-4)^2+[{1\over({x-4})^2}}]$$.
852 05f2bc483be9f31290fb3b227
5f2bc483be9f31290fb3b227- 116false
- 218false
- 320false
- 414true
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Answer : 4. "14"
Q: If one root of the equation $$ {Ax^2+Bx+C=0}$$ is two and a half times the others, then which of the following is True?
905 05f2bc442be9f31290fb3b1dc
5f2bc442be9f31290fb3b1dc- 1$$ {7B^2=3CA}$$false
- 2$$ {7B^2=4CA}$$false
- 3$$ {7B^2=36CA}$$false
- 4$$ {10B^2=49CA}$$true
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Answer : 4. "$$ {10B^2=49CA}$$"
Q: If α and β are the roots of equation $$ {x^2-2x+4=0}$$, then what is the equation whose roots are ${α^3}\over{β^2}$$ and $${β^3}\over{α^2}$$.
859 05f2bc3fdb57ade01cafa6892
5f2bc3fdb57ade01cafa6892- 1$$ {x^2-4x+8=0}$$false
- 2$$ {x^2-32x+4=0}$$false
- 3$$ {x^2-2x+4=0}$$true
- 4$$ {x^2-16x+4=0}$$false
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