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Question : Directions: If a mirror is placed on the line AB, then out of the option figures which figure will be the right image of the question figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure (on line AB). So, the left side of the reflected image will appear
Question : The stabilisation function of the government budget mainly includes _____.
Option 1: allocation of resources.
Option 2: intervention to expand or reduce the demand.
Option 3: production of public goods.
Option 4: distribution of income in society in a fair way.
Correct Answer: intervention to expand or reduce the demand.
Solution : The correct answer is the intervention to expand or reduce the demand.
The goal of a stabilisation policy is to contain wild fluctuations in the GDP (gross domestic product) of the country and to restrain sharp increases or
Question : A train of length 360 m crosses an electric pole in 30 s and crosses another train of the same length travelling in the opposite direction in 15 s. What is the speed of the second train?
Option 1: 12 m/s
Option 2: 36 m/s
Option 3: 24 m/s
Option 4: 60 m/s
Correct Answer: 36 m/s
Solution : The speed of the first train = $\frac{360}{30}$ = 12 m/s Let the speed of the second train = $x$ m/s The relative speed between the train = $(x+12)$ m/s The total length of the train = 360 + 360 = 720 $\text{Speed}=\frac{\text{Distance}}{{\text{Time}}}$ $⇒\frac{720}{x+12}=15$
Question : Directions: If JACOB can be written as QZXLY, then KENDY can be written as ______.
Option 1: PVWMA
Option 2: PVMWB
Option 3: PUMWB
Option 4: PVMWA
Correct Answer: PVMWB
Solution : Given: JACOB can be written as QZXLY –
Find out the opposite of each letter of a given term to obtain the code – ⇒ J and Q are opposite pairs; A and Z are opposite; C and X are opposite; O and L are
Question : Parts of a sentence are given below in jumbled order. Arrange the parts in the correct order to form a meaningful sentence.
(A) that further treatment (B) useless (C) the doctor concluded (D) would be
Option 1: CADB
Option 2: BDCA
Option 3: CBAD
Option 4: BCAD
Correct Answer: CADB
Solution : The correct choice is the first option.
It constitutes the standard sentence structure, i.e., subject + verb + object.
Therefore, the sentence in the correct order is: The doctor concluded that further treatment would be useless.
Question : There are 3 taps, A, B, and C, in a tank. These can fill the tank in 10 h, 20 h, and 25 h, respectively. At first, all three taps are opened simultaneously. After 2 h, tap C is closed, and taps A and B keep running. After 4 h, tap B is also closed. The remaining tank is filled by tap A alone. Find the percentage of work done by tap A itself.
Option 1: 75%
Option 2: 52%
Option 3: 72%
Option 4: 32%
Correct Answer: 72%
Solution : LCM of 10, 20 and 25 is 100 Let the capacity of the tank be 100 units Efficiency of A = $\frac{100}{10}=10$ Efficiency of B = $\frac{100}{20}=5$ Efficiency of C = $\frac{100}{25}=4$ After 2 h, tap C is closed, and taps A and B keep
Question : Which of the following is not a dwarf planet in our solar system?
Option 1: Cupid
Option 2: Makemake
Option 3: Ceres
Option 4: Haumea
Correct Answer: Cupid
Solution : The correct answer is Cupid.
"Cupid" is not a dwarf planet in our solar system. Cupid is an asteroid and a member of the Amor group, which are near-Earth asteroids. The other options—Makemake, Ceres and Haumea—are classified as dwarf planets. Makemake and Haumea are
Question : Directions: Select the letter cluster that can replace the question mark (?) in the given letter cluster series. PZX, QAY, SCA, VFD, ?
Option 1: ZKH
Option 2: ZJH
Option 3: AJG
Option 4: YKH
Correct Answer: ZJH
Solution : Given: PZX, QAY, SCA, VFD, ?
In the above-given series, add the consecutive natural numbers to the place value of the letters of each term to get the next term in the series. PZX→P + 1 = Q; Z + 1 = A; X +
Question : A can finish a work in 15 days, B can finish the same work in 25 days. They work together for 5 days. The rest of the work is finished by A and C in 4 days. Then C alone can finish the work in:
Option 1: 18 days
Option 2: 24 days
Option 3: 20 days
Option 4: 21 days
Correct Answer: 20 days
Solution : Given, time taken by A and B to complete the work is 15 and 25 days respectively. Efficiency of A = $\frac{1}{15}$ units/ day Efficiency of B = $\frac{1}{25}$ units/ day Work done in 5 days by A and B = $5(\frac{1}{15}+\frac{1}{25})=\frac{8}{15}$ So, Remaining
Question : What is the number of hydrogen atoms in a molecule of calcium bicarbonate?
Option 1: 0
Option 2: 1
Option 3: 2
Option 4: 4
Correct Answer: 2
Solution : The correct answer is 2.
Another name for calcium bicarbonate is calcium hydrogen carbonate. The chemical formula for it is Ca(HCO3)2. It is clear from the preceding formula that calcium bicarbonate has two hydrogen atoms.
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