Questions by admin

How many $4$-digit positive integers divisible by $3$ can be formed using only the digits $\{1,3,4,6,7\}$, such that no digit appears more than once in a number?$24$$48$$...

In an election, the share of valid votes received by the four candidates $\text{A, B, C}$, and $\mathrm{D}$ is represented by the pie chart shown. The total number of vot...

If ' $\rightarrow$ ' denotes increasing order of intensity, then the meaning of the words[sick $\rightarrow$ infirm $\rightarrow$ moribund] is analogous to [silly $\right...

Person $1$ and Person $2$ invest in three mutual funds $\text{A, B}$, and $\text{C}$. The amounts they invest in each of these mutual funds are given in the table Mutual...

The probability of a boy or a girl being born is $1 / 2$. For a family having only three children, what is the probability of having two girls and one boy?$3 / 8$$1 / 8$$...

The $15$ parts of the given figure are to be painted such that no two adjacent parts with shared boundaries $\text{(excluding corners)}$ have the same color. The minimum ...

Visualize two identical right circular cones such that one is inverted over the other and they share a common circular base. If a cutting plane passes through the vertice...

Ten cards in a pack are numbered as $1,2,3, \ldots 10$. The probability of drawing a card with an even number or a number which is a multiple of 5 from the pack is$4 / 10...

Hardness in water is NOT caused by$\mathrm{Ca}^{2+}$$\mathrm{Si}^{2+}$$\mathrm{Mg}^{2+}$$\mathrm{CO}_{3}^{2-}$

The maximum coordination number of $\mathrm{Sn}^{4+}$ is$4$8$6$2$

Rod shaped bacterial cells are called ________.BacilliCocciSpirillaDiplococci

Tuberculosis is predominantly caused by __________.Entamoeba histolyticSalmonella typhiMycobacterium bovisBacillus cereus

Which one of the following conversions belongs to nonsymbiotic nitrogen fixation?Atmospheric nitrogen to ammonia by Rhizobium bacteria in nodules attached to roots of leg...

Crown corrosion of reinforced cement concrete sewer is caused by ___________.sulfur oxidizing bacteriairon oxidizing bacteriadenitrifying bacteriafermentative bacteria

The processes of removal of particles in a rapid sand filter with their description is given in the table.ProcessDescription$\text{(i)}$ StrainingP:Removes only particles...

The environmental temperature increases by $6^{\circ} \mathrm{C} / \mathrm{km}$ with height at a particular location. The stability condition of the atmosphere at the loc...

As per the United Nations agenda for sustainable development adopted in September $2015$, the number of Sustainable Development Goals (SDGs) are _________ and the propose...