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Question : In a factory, Ajay and Vijay work on the same machine to cut diamonds but on an alternate-hour basis. Ajay works for the first hour and then Vijay works for the second hour and so on. Ajay can complete the work in 6 hours, while Vijay completes it in 16 hours if they work individually. In how much time can they complete the work if they are using the machine on an alternate basis?
Option 1: 8 hr 30 min
Option 2: 8 hr
Option 3: 9 hr
Option 4: 9 hr 30 min
Correct Answer: 8 hr 30 min
Solution : Time taken by Ajay to complete the work = 6 hours ⇒ Part of work done by Ajay in an hour = $\frac{1}{6}$ Time taken by Vijay to complete the work = 16 hours ⇒ Part of work done by Vijay in
Question : In April 2019, Dinesh purchased a new car for INR 7,00,000 and sold it in April 2022 at its depreciated cost. If the rate of depreciation in the first year is 20%, 15% in the second year, and 10% every year thereafter, what amount of money will Dinesh get as the selling price?
Option 1: INR 4,28,400
Option 2: INR 4,28,600
Option 3: INR 4,68,400
Option 4: INR 5,28,400
Correct Answer: INR 4,28,400
Solution : After the first year, the value of the car depreciates by 20%. The value of the car after the first year = 7,00,000 × (1 – 0.20) = INR 5,60,000. After the second year, the value of the car depreciates by 15%. The value
Question : Select the most appropriate synonym to replace the italicised word.
We also must do something about our mental and physical lethargy.
Option 1: eagerness
Option 2: enthusiasm
Option 3: hebetude
Option 4: vigour
Correct Answer: hebetude
Solution : The correct choice is the third option.
The word lethargy refers to a state of lack of energy, alertness, or enthusiasm. Hebetude denotes the state of being dull or lethargic.
The meanings of the other options are as follows:
Question : The term that should be added to ($4x^2+8x$) so that the resulting expression be a perfect square, is:
Option 1: $2$
Option 2: $4$
Option 3: $2x$
Option 4: $1$
Correct Answer: $4$
Solution : $4x^2+8x$ = $(2x)^2+2×(2x)×2$ Adding $4$ on both sides then use identity: $(a + b)^2 = a^2 + b^2 + 2ab$ $4x^2+8x+4$ = $(2x)^2+2×(2x)×2+4$ = $(2x+2)^2$ Thus, $4$ is to be added to $4x^2+8x$ to make it a perfect square. Hence, the correct answer is $4$.
Question : Gandhiji considered Khadi as a symbol of
Option 1: Industrialisation
Option 2: economic independance
Option 3: Economic growth
Option 4: Moral purity
Correct Answer: economic independance
Solution : Correct Answer is economic independance
Khadi, originally known as Khaddar, is a type of handspun & hand woven cotton cloth. It was one of the iconic symbols of India’s freedom struggle, and was considered by Mahatma Gandhi to symbolize India’s unity of humanity, economic
Question : The ______ were the successors of Timur, the ruler of Iran, Iraq and modern-day Turkey.
Option 1: Rajputs
Option 2: Khaljis
Option 3: Mughals
Option 4: Tughlaqs
Correct Answer: Mughals
Solution : The correct answer is the Mughals.
The Mughals' ancestors came from two distinguished royal families. Genghis Khan, who united the Mongol tribes in China and Central Asia to form the Mongol Empire, was a relative on the maternal side. On the paternal side, they
Question : Identify a dark-coloured amorphous substance that is highly resistant to microbial action and undergoes decomposition at an extremely slow rate.
Option 1: Chitin
Option 2: Humus
Option 3: Carotenoids
Option 4: Colloids
Correct Answer: Humus
Solution : The correct answer is Humus.
The dark-coloured amorphous substance that is highly resistant to microbial action and undergoes decomposition at an extremely slow rate is most likely humus. Humus is a component of soil and is formed from the decomposition of organic matter, such
Question :
Which enzyme is present in all members of the animal kingdom except Protozoa?
Option 1:
Insulin
Option 2:
Pepsin
Option 3: Renin
Option 4: Amylase
Correct Answer: Amylase
Solution : The correct option is Amylase.
Protozoa digestion is carried out by many enzymes such as peptidase, proteinase, lipase, and so on; however, protozoa lack amylase, which is essential for fat and starch digestion. Because amylase is absent, protozoa such as amoeba are unable to
Question : Select the option that can be used as a one-word substitute for the given group of words.
A thing fit to eat.
Option 1: Eligible
Option 2: Digestible
Option 3: Curable
Option 4: Edible
Correct Answer: Edible
Solution : The correct choice is the fourth option.
Edible means something that is suitable for eating and is the preferred choice from the options given.
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at AB as shown.
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. So, according to the above property and the information provided, the mirror is placed on the right side of the figure (on line AB). So, the left side of the
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