Correct Answer: (1)

Solution : The correct choice is the first option.

The error is in the use of "long-term convict" instead of "life-term convicts". "Life-term convicts" is more appropriate to describe prisoners who are sentenced to life in prison.

Therefore, the correct sentence is: Prisoners, especially life-term convicts

Correct Answer: Both conclusions I and II follow

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

Let's analyse the conclusions –
Conclusion (I): All trees are cups – From the Venn diagram, it is evident that the circle representing trees completely lies inside

Correct Answer: 11 sec

Solution : When two trains run in opposite directions, their relative speed is the sum of their speeds. 
The length of the two trains is 121 m and 99 m.
The total length = 121 m + 99 m = 220 m
The relative speed of

Correct Answer: Development

Solution : The correct choice is the first option.

Explanation: The word "progress" implies positive advancement, improvement, or development. In this context, it signifies movement and growth. "Development" is a suitable synonym as it also conveys the idea of progress, expansion, or the process of becoming

Correct Answer: 33.4

Solution : The formula for the mean ($X$) using the method of assumed mean is:
$X = A + \frac{\sum fd}{\sum f}$ where $A$ is assumed mean, $f$ is frequency, and $d$ is deviation from mean.
The assumed mean ($A$) is usually taken as the midpoint of

Correct Answer: Uranium

Solution : The correct option is Uranium.

Uranium fuel rods, often referred to as control rods, are used in nuclear reactors as nuclear fuel to govern the rate at which uranium and plutonium fission. Fuel rods are sealed metal tubes into which the uranium is packed after

Correct Answer: 93.6$^\circ$

Solution : Given the value of education = 26
Total value = 100
Central angle = $\frac{\text{Value of education}}{\text{Total value}}×360^\circ$
= $\frac{26}{100}×360^\circ = 93.6^\circ$
Hence, the correct answer is 93.6$^\circ$.

Correct Answer: 72

Solution : Given:
1 @ 9 & 5 = 14 and 2 & 4 @ 3 = 14, then 7 @ 9 & 9 = ?

Find the operations from the given symbols in the equation.
The pattern in the equation is –
1 @ 9 &

Correct Answer: Obsolete

Solution : The fourth option is correct.

Explanation:
The one-word substitute for the group of words (no longer used because something new has been invented) is obsolete.
No longer used: This part indicates that something was once in use but is now abandoned or discontinued.

Correct Answer: 10

Solution : Given: 
40 + [{(24 – 12) × (2 ÷ 2)} + (18 × 10)] = ?

After interchanging the given mathematical signs, we get –
= 40 ÷ [{(24 + 12) – (2 × 2)} ÷ (18 – 10)]
= 40 ÷ [{36 – 4}