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Question : Directions: Which of the option figures is the exact mirror image of the given problem figure when the mirror is held to the right side of the problem figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear close to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure. So, the left side of the reflected image will appear as the right
Question : Directions: Select the option that is related to the first number in the same way as the third number is related to the fourth number and the fifth number is related to the sixth number. 12 : ? :: 15 : 1728 :: 11: 512
Option 1: 216
Option 2: 81
Option 3: 729
Option 4: 6561
Correct Answer: 729
Solution : Given: 12 : ? :: 15 : 1728 :: 11 : 512
Like, (15 : 1728)→(15 – 3)3 = (12)3 = 1728 (11 : 512)→(11 – 3)3 = (8)3 = 512 Similarly, follow the same pattern for (12 : ?)→(12 –
Question : Directions: Introducing a man, a woman said, "His wife is the only daughter of my mother". How is the woman related to the man?
Option 1: Sister-in-law
Option 2: Wife
Option 3: Aunt
Option 4: Mother-in-law
Correct Answer: Wife
Solution : As per the instructions given, the family tree will be –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
According to the above family tree, the woman is the wife of the man. Hence, the second option
Question : Who invented the electric bulb?
Option 1: Thomas More
Option 2: Thomas Alva Edison
Option 3: James Watt
Option 4: None of these
Correct Answer: Thomas Alva Edison
Solution : The correct answer is Thomas Alva Edison.
An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Thomas Alva Edison created the first electric light bulb for commercial use. A
Question : Directions: A series is given below with one term missing. Choose the correct alternative from the given ones that will complete the series. AN, DQ, GT, JW, ?
Option 1: MA
Option 2: NZ
Option 3: MZ
Option 4: LY
Correct Answer: MZ
Solution : Given: AN, DQ, GT, JW, ?
Add 3 to the place value of each letter of the previous term to obtain the next term in the series – First letter of the series→A + 3 = D; D + 3 = G; G + 3
Question : Comprehension: In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
The coded box placed on the first page of every chapter (1)________ quick response code. The first QR code is to (2)__________ the complete e-textbook. The (3)_________ quick response code. will help you access the relevant e-resources linked to each other. This will help you (4)_________ your learning in a (5)_________ manner.
Question: Select the most appropriate option to fill in the blank number 5.
Option 1: joyful
Option 2: disastrous
Option 3: enjoyment
Option 4: joy
Correct Answer: joyful
Solution : The correct choice is the first option.
Joyful is the correct word, as it is used to describe something that causes happiness, and in this context, it helps convey that learning from these resources will increase learning in a happy manner.
Question : Given below are four sentences, three of which, are jumbled. Pick the option that gives the correct order.
A. For example, though there is a close relation between invention and science and engineering, an inventor is not necessarily a scientist or an engineer. B. An engineer, on the other hand, uses existing technology and scientific understanding to design better objects or processes, but an inventor creates something that had never previously existed. C. Inventors defy definition; as a result, they are frequently defined by what they are not. D. A scientist is said to be a discoverer-that is, somebody who by acute observation and brilliant analysis is able to find and explain something that already exists in nature.
Option 1: CBAD
Option 2: CBDA
Option 3: CADB
Option 4: CDBA
Correct Answer: CADB
Solution : The correct choice is the third option.
The paragraph starts with sentence C, which introduces the idea that inventors are challenging to define and are often described by what they are not. It is followed by sentence A, which provides an example
Question : If $\sin \alpha=\frac12$ and $\sin \beta=\frac12$, then what is the value of $\cos (\alpha+\beta)$? $(0°<\alpha, \beta<90° )$
Option 1: $\frac{\sqrt{3}}{2}$
Option 2: $\frac{1}{ 4}$
Option 3: $\frac12$
Option 4: $1$
Correct Answer: $\frac12$
Solution : Given, $\sin \alpha=\frac12$ and $\sin \beta=\frac12$ and $0°<\alpha, \beta<90°$ $\sin \alpha=\frac12=\sin30°$ ⇒ $\alpha =30°$ $\sin \beta=\frac12=\sin30°$ ⇒ $\beta=30°$ So, $\cos(\alpha+\beta)=\cos(30°+30°)=\cos60°=\frac{1}{2}$ Hence, the correct answer is $\frac12$.
Question : P and Q are two alloys of Aluminium and Copper. The ratios of Aluminium and Copper in P and Q are 5 : 11 and 3 : 5, respectively. If a third alloy is formed by mixing alloys P and Q in the ratio of 1 : 3, then Aluminium is what percentage (rounded off to the nearest integer) of the Copper in the third alloy?
Option 1: 63%
Option 2: 52%
Option 3: 48%
Option 4: 56%
Correct Answer: 56%
Solution : In the case of P : Ratio = 5 : 11 Total = 5 + 11 = 16 units In the case of Q : Ratio = 3 : 5 Total = 3 + 5 = 8 units Now, a third alloy is formed by
Question : Directions: A person walks towards his house at 8:00 a.m. and observes his shadow to his right. In which direction he is walking?
Option 1: North
Option 2: South
Option 3: East
Option 4: West
Correct Answer: South
Solution : As the sun rises in the East in the morning i.e. 8:00 a.m., the shadow will be formed in the opposite direction of the sun.
Here, the shadow is formed to his right, so the left side of the person is facing the sun.
So,
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