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Question : Directions: If – stands for ×, + stands for ÷ and ÷ stands for –, then what will be the value of 812 + 58 – 65 + 26 – 2 = ?
Option 1: 70
Option 2: 90
Option 3: 30
Option 4: 50
Correct Answer: 70
Solution : Given: 812 + 58 – 65 + 26 – 2 = ?
On interchanging the mathematical signs, we get – = 812 ÷ 58 × 65 ÷ 26 × 2 = 14 × 2.5 × 2 = 70
Hence, the first option is correct.
Question : A sum of Rs. 8,000 is divided into two parts. The simple interest on the first part, at a rate of 21% per annum, is equal to the simple interest on the second part, at a rate of 35% per annum. What is the interest (in Rs.) of each part?
Option 1: 1050
Option 2: 840
Option 3: 1400
Option 4: 1220
Correct Answer: 1050
Solution : Let the first part be $x$ and the second part be $(8000–x)$. Simple Interest (SI) = $\frac{(\text{Principal × Rate × Time})}{100}$ The simple interests earned on both parts are equal. Therefore, $\frac{(x × 21 × 1)}{100}=\frac{((8000–x) × 35 × 1)}{100}$ ⇒ $21x=35(8000–x)$ ⇒ $21x=280000–35x$ ⇒
Question : Name the physicist who was awarded Nobel prize for Quantum Theory in 1918.
Option 1: Max Puluak
Option 2: Niels Bohr
Option 3: Max Planck
Option 4: Burry
Correct Answer: Max Planck
Solution : The correct answer is Max Planck.
Max Karl Ernst Ludwig Planck, a German physicist, was awarded the Nobel Prize in Physics in 1918 for his groundbreaking discovery of energy quanta. In the year 1900, he made a significant breakthrough by introducing the concept
Question : Directions: Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.) Vacant : Empty :: Enormous : ?
Option 1: Sufficient
Option 2: Ample
Option 3: Huge
Option 4: Small
Correct Answer: Huge
Solution : Given: Vacant : Empty :: Enormous : ?
Like, Empty is a synonym for vacant. Similarly, the synonym of enormous is huge.
Hence, the third option is correct.
Question : Who gave the 'Law of Gravitation'?
Option 1: Michael Faraday
Option 2: Guglielmo Marconi
Option 3: James Watt
Option 4: Isaac Newton
Correct Answer: Isaac Newton
Solution : The correct option is Isaac Newton.
Sir Isaac Newton developed the law of gravitation. The following equation describes this fundamental law: F=G.m1m2/ r2 where F is the gravitational force between two objects, G is the gravitational constant, m
Question : A boy covers a certain distance between his house and school on a cycle. Riding at an average speed of 15 km/hr, he is late by 10 min. However, with an average speed of 20 km/hr, he reaches the school 5 min earlier. Find the distance between his house and school.
Option 1: 25 km
Option 2: 20 km
Option 3: 15 km
Option 4: 30 km
Correct Answer: 15 km
Solution : Let the distance between his house and school be $x$ km. Given, the time taken to cover $x$ km at an average speed of 15 km/hr – Time taken to cover $x$ km at an average speed of 20 km/hr = 15 minutes So,
Question : In part one, while solving a question, Suhas accidentally took a number as a dividend which was 10% less than the original dividend. He also mistakenly took as divisor a number that was 20% less than the original divisor. If the correct quotient of the original question of division was 24 and the remainder was 0, then what quotient did Suhas obtain, assuming there was no error in his calculations?
Option 1: 27
Option 2: 21.6
Option 3: 26.4
Option 4: 30
Correct Answer: 27
Solution : Original quotient = 24 Original remainder = 0 Wrong dividend = 90% of original dividend Wrong divisor = 80% of original divisor We know that, Dividend = Divisor × Quotient + Remainder Here, Dividend = Divisor × Quotient So, old and new dividends, divisors and
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. Heat exhaustion can be a recreational hazard, (1) ______ for athletes playing sports outdoors (2) ______ wearing heat-trapping clothing and gear when temperatures are high, (3) ______ as the case in American football. Small studies (4) ______ aimed to design more (5) ______ football uniforms. Question: Select the most appropriate option to fill in the blank number 2.
Option 1: since
Option 2: while
Option 3: instead
Option 4: otherwise
Correct Answer: while
Solution : The most appropriate option is the second option.
Explanation: The sentence structure suggests a contrast or a simultaneous situation between heat exhaustion being a recreational hazard and athletes playing sports outdoors. The conjunction, while fits best in this context by indicating the contrast between
Question : What is the difference (in Rs.) between the compound interest and simple interest for 3 years on a Principal of Rs.1000 at 20% per annum?
Option 1: Rs. 64
Option 2: Rs. 120
Option 3: Rs. 128
Option 4: Rs. 136
Correct Answer: Rs. 128
Solution : Given: Principal = Rs. 1000 Rate = 20% Time = 3 years Solve by using the formula for 3 years: $D=P×\frac{(300+R)R^{2}}{100^{3}}$, where $D$ = Difference between compound interest and simple interest, $P$ = Principal, $R$ = Rate of interest. Putting the values in the
Question : Select the sentences that contains no spelling errors.
Option 1: Anxiety is one of the most insidyous conditions affecting the mental health of an individual.
Option 2: Anxiety is one of the most insidious conditions affecting the mental health of an individual.
Option 3: Anxiety is one of the most insicdious conditions affecting the mental health of an individual.
Option 4: Anxiety is one of the most insidiouos conditions affecting the mental health of an individual.
Correct Answer: Anxiety is one of the most insidious conditions affecting the mental health of an individual.
Solution : The second option is the correct choice.
There is an error in the word, which is common in each sentence. The corrected word is insidious, which refers to the spreading or
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