It's a Question of your Career!

Correct Answer: 300

Solution : Given: The ratio of P, Q, and R is 2 : 5 : 7 respectively.
Their sum is 840.
Let the required number be $2x$, $5x$ and $7x$ respectively.
According to the question,
⇒ $2x+5x+7x=840$
⇒ $14x=840$
⇒ $x=60$
The difference between P and R

Correct Answer: Calcium carbonate

Solution : The correct option is Calcium carbonate.

The interaction between carbon dioxide and calcium hydroxide produces a white precipitate, calcium carbonate (CaCO₃) when carbon dioxide is passed through lime water. This is used to detect the presence of carbon dioxide. The chemical

Correct Answer: Hockey

Solution : The correct answer is Hockey.

The Sultan of Johar Cup is an annual, international under-21 men's hockey tournament. This tournament is held in Malaysia annually. The first edition of this tournament was held in 2011. India and Great Britain are the most successful teams,

Correct Answer: Only conclusion II follows

Solution : The possible Venn diagram, according to the given statements is as follows –

Let's analyse the conclusions –
Conclusion (I): 
Some boxes are plates – From the Venn diagram, it is evident that there is no direct relation between boxes and plates.

Correct Answer: 3 : 5

Solution : Average of the foreign exchange reserves of a country (in millions USD) from 1991-1992 to 1998-1999 is: $=\frac{2640+3720+2520+3360+3120+4320+5040+3120}{8}$
= 3480
The number of years in which the reserves are above the average reserves = 3
The number of years in which the reserves

Correct Answer: Fungal enzymes

Solution : The correct answer is Fungal enzymes​​​​.

Fungal enzymes decompose detritus (dead organic matter) into simpler inorganic substances. Fungi are decomposers in ecosystems, and their enzymes help break down complex organic compounds in detritus into smaller molecules like simple sugars and other organic and

Correct Answer: 60 kg

Solution : Original price = Rs. 100 per kg
Original consumption = $x$ kg
After a decrease of 25%,
New price = Rs. 75 per kg
New consumption = $x$ + 20 kg
Original expenditure = 100$x$
New expenditure = $75\times(x + 20) = 75x +

Correct Answer: Miniture

Solution : The correct choice is the fourth option.

The incorrectly spelt word is "miniture". The correct spelling is miniature, which refers to something that is smaller in scale or size than normal. It can be a small version or representation of something larger. It can

Correct Answer: 15%

Solution : Let the income be 100.
Spent on food = 25%
Spent on children book = 15%
Remaining salary = 100 – 25 – 15 = 60%
75% of the remaining on uniform = $\frac{75}{100}\times60=45$
$\therefore$ She left with 60 – 45 = 15%
Hence, the

Correct Answer: 560

Solution : Given:
$a+b-c=20$ and $a^2+b^2+c^2=152$
$ a+b-c = 20$
Squaring both sides, we get,
⇒ $a^2 + b^2+c^2 + 2ab-2bc-2ca = 400$
⇒ $2(ab-bc-ca) = 400-152$
⇒ $ab-bc-ca = 124$
Now to find, $a^3+b^3-c^3+3abc$
$= (a+b-c)(a^2+b^2+c^2-(ab-bc-ca))$
$= 20\times (152-124)$
$= 20\times 28 = 560$
Hence, the