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Recent questions tagged algebra

1 vote
1 answer
1
The sum of a number and its double is $69$. What is the number? $46.6$ $34.5$ $23$ $20$
asked Apr 3, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 93 views
0 votes
1 answer
2
Twelve less than $4$ times a number is $20$. What is the number? $2$ $4$ $6$ $8$
asked Apr 3, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 104 views
1 vote
1 answer
3
A certain number when added to $50\%$ of itself is $27$. What is the number? $7$ $9$ $11$ $18$
asked Apr 3, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 95 views
0 votes
1 answer
4
A school has $378$ girls and $675$ boys. All the students divided into strictly boys and strictly girls students sections. All the sections in the school has same number of students. What is the number of sections in the school? $27$ $36$ $39$ $23$
asked Apr 3, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 88 views
0 votes
1 answer
5
A dog at point $A$ goes in pursuit of a fox $30$ $m$ away. The dog makes $2$ $m$ and the fox, $1$ m long leaps. If the dog makes two leaps to the fox’s three, at what distance from $A$ will the dog catch up with the fox ? $100$ $m$ $110$ $m$ $105$ $m$ $120$ $m$
asked Apr 3, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 83 views
0 votes
1 answer
6
If $5$ spiders can catch $5$ files in $5$ minutes. How many files can $100$ spiders catch in $100$ minutes : $100$ $1000$ $500$ $2000$
asked Apr 3, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 99 views
0 votes
1 answer
7
The value of $\large\frac{(0.96)^3-(0.1)^3}{(0.96)^2+0.096+(0.1)^2}$ is : $0.86$ $0.95$ $0.97$ $1.06$
asked Apr 2, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 112 views
0 votes
0 answers
8
The expression $(11.98\times 11.98 + 11.98 \times x +0.02 \times 0.02)$ will be a perfect square for $x$ equal to: $2.02$ $0.17$ $0.04$ $1.4$
asked Apr 2, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 59 views
0 votes
0 answers
9
The simplified form of $\left[ \left ( \left( \dfrac{a+1}{a-1}\right)^2+3 \right)\div \left( \left( \dfrac{a+1}{a-1}\right)^2+3\right) \right] \div \left [\left( \dfrac{a^{3}+1}{a^{3}-1}\right)-\dfrac{2a}{a-1} \right]$ is: $a-1$ $1-a$ $-1$ $1$
asked Apr 1, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 67 views
0 votes
1 answer
10
$₹6500/-$ were divided among a certain number of persons. If there had been $15$ more persons, each would have got $₹30/-$ less. Find the original number of persons. $50$ $60$ $45$ $55$
asked Apr 1, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 90 views
0 votes
1 answer
11
A charitable trust donates $28$ different books of Maths, $16$ different books of science and $12$ different books of social science to poor students. Each student is given maximum number of books of only one subject of their interest and each student got equal number of books. Find the total number of students who got books. $14$ $10$ $12$ $15$
asked Apr 1, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 138 views
0 votes
1 answer
12
The factors of $(x^{2}+4y^{2}+4y-4xy-2x-8)$ are: $(x-2y-4)(x-2y+2)$ $(x-y+2)(x-4y-4)$ $(x+2y-4)(x+2y+2)$ None of these
asked Apr 1, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 94 views
1 vote
2 answers
13
If $a^{x}=b, b^{y}=c$ and $c^{z}=a$, then $xyz$ equals: $abc$ $\dfrac{1}{abc}$ $1$ None
asked Apr 1, 2020 in Quantitative Aptitude Lakshman Patel RJIT 9.2k points 29 449 804 99 views
1 vote
1 answer
14
Consider the following statements: If $a^{x}=b,b^{y}=c,c^{z}=a,$ then $xyz=1$ If $p=a^{x},q=a^{y},\left ( p^{y}q^{y} \right )^{z}=a^{2},$ then $xyz=1$ If $x^{a}=y^{b}=z^{c}$ and $ab+bc+ca=0$ then $xyz=1$ Of these statements: I and II are correct II and III are correct Only I is correct All I, II and III are correct
asked Mar 1, 2020 in Quantitative Aptitude Arjun 8.1k points 52 80 172 84 views
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