Recent questions tagged nielit2022feb-scientistd

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A merchant earns $25\%$ profit in general. Once his $25\%$ consignment was stolen by some goons. Trying to compensate his loss he sold the rest of the consignment by incr...
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If $x = 5/12, y = – 3/4, z = 1/3,$ the value of $x^{3} + y^{3} + z^{3}$ is :$-15/16$$-3/4$$-9/4$$-5/16$
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If $(0.0256) \div 0.064 \times (0.4)^{8} = (0.4)^{x} \times 0.16,$ the value of $x$ is :$5$$6$$7$$4$
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In a right angled triangle, the circum-centre of the triangle lies:inside the triangle.outside the triangle.on one vertex.on the mid-point of the hypotenuse.
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$\text{A, B}$ and $\text{C}$ can do a piece of work in $24, 30$ and $40$ days respectively. They began the work together but $\text{C}$ left $10$ days before completion o...
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A positive number when decreased by $4$ is equal to $21$ times the reciprocal of the number. The number(s) is/are :$3$$7$$3$ and $-7$$-3$ and $7$
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Select the correct combination of mathematical signs to replace $^{\ast}$ signs and to balance the following equation :$18 \ast 2 \ast 5 \ast 4 = 10$$\times \div +$$+ \ti...
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The highest score in an inning was $\frac{3}{12}$ of the total score and the next highest was $\frac{3}{12}$ of the remainder. These scores differed by $27$ runs. What wa...
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If a car driver divides a distance into $3$ equal parts and travels the three parts with speeds of $48, 54$ and $72$ km/hr, respectively. The average speed for the whole ...
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The sum of the seven numbers is $254.$ The average of first three is $25$ and that of the last three is $44.$ The fourth number is :$40$$47$$45$$48$
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By selling $25$ kg of rice, a trader gains the selling price of $5$ kg of rice. The gain of the trader in $\%$ is :$12.5 \%$$20 \%$$25 \%$$33.3 \%$
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If $\sec \theta + \tan \theta = \sqrt{3},$ then the positive value of $\sin \theta$ is :$\frac{\sqrt{3}}{2}$$\frac{1}{2}$$\frac{1}{\sqrt{3}}$$\sqrt{3}$
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A person travels a certain distance at $5 \; \text{km/hr}$ and reaches $10$ min late. If he travels at $6 \; \text{km/hr}$, he reaches $10$ min earlier. The distance he h...
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If $+$ stands for division; $\times$ stands for addition; $-$ stands for multiplication; $\div$ stands for subtraction, which of the following is correct ?$15 \div 5 \tim...
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If the ratio of speed of doing work of three persons is $2:3:7,$ what is the ratio of time taken by these people to do the same amount of work ?$2 : 14 : 21$$21 : 14 : 6$...
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A $15 \; \text{km}$ long road can be made by $20$ men in $18$ days. What is the length of the road that can be made by $15$ men in $12$ days ?$6 \; \text{km}$$6.5 \; \tex...
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Two arcs of lengths $a \; \text{cm}$ and $b \; \text{cm}$ subtend angles $60^{\circ}$ and $90^{\circ}$ at the centre of a circle respectively. The relation between $a$ an...
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The average of the three numbers $x, y$ and $z$ is $48. x$ is greater than the average of $y$ and $z$ by $9.$ The average of $y$ and $z$ is greater than $y$ by $2.$ Then ...
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If $60 \%$ of $(x-y) = 30 \%$ of $(x+2y),$ then what percent of $x$ is $y?$$10 \%$$15 \%$$20 \%$$25 \%$
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The number lying between $900$ and $1000,$ which when divided by $38$ and $57$ leaves a remainder $21$ in each case, is :$912$$921$$933$$943$
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A bought an article and spent $\text{Rs. 110}$ on its repair. He then sold it to $\text{B}$ at $20 \%$ profit, $\text{B}$ sold it to $\text{C}$ at a loss of $10 \%$ and $...
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In a survey of $100$ students, it was found that $50$ used the college library, $40$ had their own library and $30$ borrowed books of these, $20$ used both the college li...
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The distance between two stations $\text{A}$ and $\text{B}$ is $450 \; \text{km}$. A train starts from $\text{A}$ and moves towards $\text{B}$ at an average speed of $15 ...
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The rates of simple interest in two banks $\text{A}$ and $\text{B}$ are in the ratio $5: 4$. A person wants to deposit his total savings in two banks in such a way that h...
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A clock gaining $3$ min every hour was synchronised at midnight with a clock losing $2$ min every hour. How many minutes the clock (losing time) will be behind at eleven ...
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In a village the current birth rate per thousand is $55$ whereas corresponding death rate is $34$ per thousand. The net growth rate in terms of population increase will b...
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If an article is sold at $8 \%$ profit instead of $8 \%$ loss, it would have brought $\text{Rs. 12}$ more. Find the cost price of the article :$\text{Rs. 75}$$\text{Rs. 7...
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By selling $33$ meters of cloth, one gains the selling price of $11$ meters. Find the gain percent :$20 \%$$40 \%$$50 \%$$22 \%$
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Gold is $19$ times as heavy as water and copper $9$ times as heavy as water. In what ratio should the metals be mixed so that the mixture may be $15$ times as heavy as wa...
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What largest number of five digits is divisible by $99$ ?$99999$$99981$$99909$$99990$
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The average score of boys in an examination of a school is $71$ and that of girls is $73.$ The average score of the school in that examination is $71.8$. Find the ratio o...
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$12$ children take $16$ days to complete a work which can be completed by $8$ adults in $12$ days. $16$ adults started working and after $3$ days $10$ adults left and $4$...
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In an engineering college the average salary of all engineering graduates from Mechanical trade is $\text{Rs. }2.45$ lacs per annum and that of the engineering graduates ...
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The sum of first $20$ odd counting numbers is :$20$$100$$400$$313$
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On increasing the price of TV sets by $30 \%$, their sale decreases by $20 \%$. What is the effect on the revenue receipts of the shop?$4 \%$ increase$4 \%$ decrease$8 \%...
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The population of bacteria culture doubles every $2 \text{ min}$. Approximately, how many minutes will it take for the population to grow from $1000$ to $500,000$ bacteri...
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The question is based on the pie chart given below :Share of Revenue obtained from each type (by capacity) of connection sold by $\text{VSNL}$ out of total revenue of $\t...
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The question is based on the pie chart given below :Share of Revenue obtained from each type (by capacity) of connection sold by $\text{VSNL}$ out of total revenue of $\t...
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The question is based on the pie chart given below :Share of Revenue obtained from each type (by capacity) of connection sold by $\text{VSNL}$ out of total revenue of $\t...
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The question is based on the table given below which represents the percentage growth in the volume of sales of five brands of motor cars across the years mentioned and t...