Correct Answer: Chemical change

Solution : The correct option is Chemical change.

When milk is converted into curd, it is a chemical change. This transformation involves the fermentation of milk by beneficial bacteria, such as Lactobacillus, which consume the lactose (milk sugar) and produce lactic acid. The production of

Correct Answer: 3 – 39

Solution : Let's check the options –
First option: 7 – 49; (7)² = 49
Second option: 2 – 4; (2)² = 4
Third option: 5 – 25; (5)² = 25
Fourth option: 3 – 39; (3)² = 9 ≠ 39

Correct Answer: Rs. 4000

Solution : Let $2X = 3Y = 4Z = k$
$X =\frac{k}{2}, Y = \frac{k}{3}, Z = \frac{k}{4}$
The sum of shares of all of them together = 13000
⇒ $\frac{k}{2} + \frac{k}{3} + \frac{k}{4} = 13000$
⇒ $\frac{6k+4k+3k}{12}=13000$
⇒ $\frac{13k}{12}=13000$
⇒ $k = 12000$
$\therefore$

Correct Answer: Shy

Solution : The correct choice is the first option.

Introverts are typically reserved people.

Outspoken, social, and bold are terms used for people who are not as reserved as introverts.

The sentence describes the girl as being painfully introverted, which suggests that she is extremely shy

Correct Answer: 2430

Solution : The first 2 digit number is 10 and the last two-digit number is 98.
Sum = $\frac{n}{2}(\text{first term + last term})$
Number of terms = $\frac{(98 - 10)}{2} + 1$ = 45
Now, we can find the sum:
Sum = $\frac{45}{2}(10 + 98)$
⇒ Sum

Correct Answer: 2400

Solution : The correct answer is 2400.

China's monarchs started constructing the Great Wall some 2400 years ago, before the Mauryan empire. Its purpose was to keep pastoral people away from the empire's northern frontier.

Correct Answer: Barter exchanges require a double coincidence of wants.

Solution : The correct option is Barter exchanges require a double coincidence of wants.

The most problematic and primary difficulty of barter exchanges compared to money-based exchanges is the requirement of a double coincidence of wants. In barter, both

Correct Answer: 1,10,000

Solution : $P=P{_0}​×(1+r)^t$
where: $P$ is the present population, $P{_0}$​ is the past population, $r$ is the annual growth rate (as a decimal), and $t$ is the number of years.
Given, $P{_0} = 133,100$
$r = 10\%$
We have to find the population 2 years ago ($t=−2$

Correct Answer: 90 days

Solution : Given: A can do in one day three times the work done by B in one day. They together finish $\frac{2}{5}$th of the work in 9 days.
Let the efficiency of B = $a$ units,
So, the efficiency of A = 3$a$ units
Here,

Correct Answer: zero

Solution : The correct option is zero.

Hoarded money, also known as idle money or cash hoarding, is money that individuals or entities hold but do not actively use for transactions or investments. This money is often kept in physical cash, bank deposits, or other liquid assets.