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Question : The price of an article is first increased by 25% and later on, the price was decreased by 30% due to a reduction in sales. Find the net percentage change in the final price of the article.

Option 1: 11.5% increased

Option 2: 14% decreased

Option 3: 13% increased

Option 4: 12.5% decreased

Team Careers360 25th Jan, 2024

Correct Answer: 12.5% decreased


Solution : Let the original price of the article be 100.
After a 25% increase, the new price $=100 + 25 = 125$
Then, a 30% decrease on the new price $=125 - \frac{30}{100}\times 125 = 87.5$
The net percentage change $=\frac{{\text{Final price} - \text{Initial price}}}{\text{Initial

21 Views

Question : Comprehension:
Read the following passage and answer the questions that follow.
Unlike its Nordic neighbours, Sweden decided early on in the pandemic to forgo lockdown in the hope of achieving broad immunity to the coronavirus. While social distancing was promoted, the government allowed bars, restaurants, salons, gyms, and schools to stay open. Initially, Sweden saw death rates from COVID-19 that were similar to those of other European nations that had closed down their economies. But now, the Scandinavian nation's daily death toll per 1 million people is 8.71 compared to the United States 4.59, according to the online publication 'Our World in Data'. Sweden's mortality rate is the highest in Europe. "I'd say it hasn't worked out so well," said Dr. George Rutherford, professor of epidemiology at the University of California, San Francisco. "I think the mortality in Norway is something like ten-fold lower. That's the real comparator." (Norway's daily death rate is less than 0.01 per 1 million people.)
"If you let this go, don't try very hard, or go about it in somewhat of a more restrained way than we have here, this is the price you pay," Rutherford said. "Maybe it didn't hurt businesses, but you have twice the mortality rate of the United States. All those people who died were part of families, and they were citizens and part of the fabric of Swedish society. And now they're gone because of a policy that hasn't worked out quite the way they thought it would."
Scientists estimate herd immunity for the coronavirus is reached when 70–90% of the population becomes immune to a virus, either by becoming infected or getting a protective vaccine.
Despite its relaxed response, Sweden is nowhere near hitting that goal. Tests on 1,118 Stockholm residents carried out by Sweden's Public Health Agency over one week in late April showed that only 7.3% had developed the antibodies needed to stave off the disease. "I think herd immunity is a long way off if we ever reach it," Björn Olsen, a professor of infectious medicine at Uppsala University, told Reuters after the release of the antibody findings.
Rutherford said we can keep doing non-pharmaceutical interventions like contact tracing, mask-wearing, and isolation quarantines, but also develop drugs that work better treating people who already have the infection so they don't require critical care in a hospital.

Question:
What was the result of having no lockdown in Sweden?

Option 1: Sweden's mortality rate became the highest in Europe.

Option 2: The economy in Sweden flourished more than before.

Option 3: Sweden has achieved herd immunity against the Corona virus.

Option 4: Sweden's public health care system became more robust.

Team Careers360 25th Jan, 2024

Correct Answer: Sweden's mortality rate became the highest in Europe.


Solution : The correct choice is the first option

Explanation: The passage illustrates that despite forgoing a lockdown and pursuing a strategy aiming at achieving broad immunity to the coronavirus, Sweden's mortality rate due to COVID-19 was now the highest

14 Views

Question : The area of a square is 100 sq. cm. Find the length (in cm) of its diagonal.

Option 1: $10\sqrt{2}$

Option 2: $10$

Option 3: $20\sqrt{2}$

Option 4: $20$

Team Careers360 25th Jan, 2024

Correct Answer: $10\sqrt{2}$


Solution : The area of a square is given by the formula $A = s^2$, where $s$ is the length of a side.
Given that the area is 100 sq. cm.
$s = \sqrt{A} = \sqrt{100} = 10 \text{ cm}$
The length of the diagonal $d$ of

15 Views

Question : If $x$ is subtracted from each of the numbers 20, 37, 54 and 105, then the numbers so obtained in this order are in proportion. What is the mean proportional between $(7 x-5)$ and $(x+1) $?

Option 1: 8

Option 2: 9

Option 3: 6

Option 4: 12

Team Careers360 25th Jan, 2024

Correct Answer: 8


Solution : If $x$ is subtracted from each of the numbers 20, 37, 54 and 105, then the numbers so obtained in this order are in proportion.
So, $\frac{(20-x)}{(37-x)} = \frac{(54-x)}{(105-x)}$
$⇒[(20-x)(105-x)]=[(54-x)(37-x)]$
$⇒34x=102$
$⇒x = 3$
The mean proportional between $(7x-5)$ and $(x+1)$ is the square root

6 Views

Question : Directions: Select the option figure in which the given figure (X) is embedded as its part. (Rotation is not allowed.)

Option 1:

Option 2:

Option 3:

Option 4:

Team Careers360 25th Jan, 2024

Correct Answer:


Solution : As there is a restriction on the rotation of the figure, we will check where the question figure can exactly fit itself in the given option figures.
By comparison of all the option figures, the given question figure is embedded only in the fourth option figure.

12 Views

Question : In a circle, the length of a chord is 30 cm. The perpendicular distance of the chord from the centre of the circle is 8 cm. Find the diameter of the circle.

Option 1: 28 cm

Option 2: 34 cm

Option 3: 17 cm

Option 4: 30 cm

Team Careers360 25th Jan, 2024

Correct Answer: 34 cm


Solution :
Let AB be the chord and O be the center of the circle.
Also, OP is perpendicular to AB
In $\triangle$ OPB,
OB2 = PB2 + OP2
⇒ OB2 = 152 + 82
⇒ OB2 = 225

12 Views

Question : Who was the pioneer of the western system of education in India ?

Option 1: Dayanand Saraswati

Option 2: Lala Lajpat Rai

Option 3: Raja Ram Mohan Roy

Option 4: Surendranath Bannerjee

Team Careers360 25th Jan, 2024

Correct Answer: Raja Ram Mohan Roy


Solution : Correct Answer is Raja Ram Mohan Roy 

The remarkable changes Raja Ram Mohan Roy brought about in India during the 18th and 19th centuries have earned him the title, "father of the modern Indian Renaissance." Roy worked hard to spread among his

15 Views

Question : Directions: If 6 @ 4 @ 7 = 101 and 2 @ 5 @ 11 = 150, then what is the value of A in A @ 8 @ 9 = 289?

Option 1: 5

Option 2: 8

Option 3: 12

Option 4: 17

Team Careers360 25th Jan, 2024

Correct Answer: 12


Solution : Given:
6 @ 4 @ 7 = 101, 2 @  5 @ 11 = 150

Use the following operations in place of the given symbols @.
Like, 6 @ 4 @ 7 = 101 i
= 62 + 42 + 72 =

21 Views

Question : Who among the following founded the Kalakshetra Foundation in Chennai which is an important centre for the study and performance of fine arts?

Option 1: Rukmini Devi Arundale

Option 2: Yamini Krishnamurthy

Option 3: Mrinalini Sarabhai

Option 4: Alarmel Valli

Team Careers360 25th Jan, 2024

Correct Answer: Rukmini Devi Arundale


Solution : The correct answer is Rukmini Devi Arundale.

Kalakshetra Foundation, formerly known as Kalakshetra, is an esteemed arts and cultural academy situated in Chennai, India. Established in January 1936 by Rukmini Devi Arundale and George Arundale, the foundation is devoted to preserving traditional

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