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Question : Minamata disease is a nervous disorder caused by eating fish polluted with _____.
Option 1: Iron
Option 2: Mercury
Option 3: Lead
Option 4: Nickel
Correct Answer: Mercury
Solution : The correct option is mercury.
Mercury, specifically methylmercury, a highly poisonous chemical, responsible for the Minamata sickness. The release of methylmercury into bodies of water poisoned fish, resulting in significant health problems for the people.
Question : Directions: Three of the following four-letter clusters are alike in a certain way and one is different. Pick the odd one out.
Option 1: PUXZ
Option 2: CHLP
Option 3: TYBD
Option 4: SXAC
Correct Answer: CHLP
Solution : Let's check each option – First option: PUXZ→P + 5 = U; U + 3 = X; X + 2 = Z Second option: CHLP→C + 5 = H; H + 4 = L; L + 4 = P Third option: TYBD→T + 5 =
Question : Ustad Vilayat Khan, one of the great musicians from India, is globally renowned for playing which of the following instruments?
Option 1: Sitar
Option 2: Sarod
Option 3: Tanpura
Option 4: Violin
Correct Answer: Sitar
Solution : The correct option is Sitar.
Ustad Vilayat Khan was a renowned Indian classical musician known for playing the Sitar. He was a legendary Sitar virtuoso and a prominent figure in the world of classical music. He received numerous awards and honours for his contributions to
Question : The HVJ gas pipeline from Hazira in Gujarat to Jagdishpur in Uttar Pradesh passes through which state?
Option 1: Jharkhand
Option 2: Madhya Pradesh
Option 3: Himachal Pradesh
Option 4: Uttarakhand
Correct Answer: Madhya Pradesh
Solution : The correct answer is Madhya Pradesh.
Hazira-Vijaipur-Jagdishpur, or HVJ, is the first interstate gas pipeline in India. To supply gas to fertiliser factories in the state of Uttar Pradesh, the project got underway in 1986 with the formation of GAIL Limited.
With a
Question : Which is the most stable ecosystem?
Option 1: Desert
Option 2: Ocean
Option 3: Mountain
Option 4: Forest
Correct Answer: Ocean
Solution : The correct answer is ocean.
The ocean or marine ecosystem is the largest ecosystem in the world and it is the most stable ecosystem. Water covers nearly 71% of the earth's surface area. While ecosystem is a self sustaining unit of interacting living organisms and
Question : A certain number of men completed a piece of work in 60 days. If there were 8 men more, the work could be finished in 10 days less. The number of men originally was:
Option 1: 36
Option 2: 40
Option 3: 30
Option 4: 32
Correct Answer: 40
Solution : Given: Let the original no of men be $x$. $x$ men can finish it in 60 days, and $(x+8)$ men can finish in 50 days. $M_{1}D_{1}=M_{2}D_{2}$, where $M_1$ and $M_2$ are men and $D_1$ and $D_2$ are days. $⇒60x = 50(x+8)$ $⇒10x= 400$ $\therefore x
Question : The pie chart given below shows the price of 6 different articles. The total price of all these 6 articles is Rs. 5760. The price of a particular article is shown in terms of degree with respect to the total price of all these 6 articles. P1 = The difference between the average price of K and L and the average price of J and N P2 = The total price of J, M, N, and O What is the value of (P1 + P2)?
Option 1: 2426
Option 2: 3576
Option 3: 5426
Option 4: 3232
Correct Answer: 3576
Solution : Given, The total price of all these 6 articles is Rs. 5760 P1 = The difference between the average price of K and L and the average price of J and N. Price of K = $\frac{42°}{360°}\times 5760=672$ And, Price of L = $\frac{116°}{360°}\times5760=1856$ $\therefore$
Question : Directions: In each of the following questions, which one set of letters/numbers when sequentially placed at the gaps in the given letter series shall complete it? bb_aab_caab_ca_
Option 1: abac
Option 2: bcab
Option 3: cbba
Option 4: acab
Correct Answer: cbba
Solution : Given: bb_aab_caab_ca_
To fill the series we have to divide the series – bb_aa / b_caa / b_ca_ Let's check each option – First option: abac; bbaaa / bbcaa / bacac (No repeated pattern has been found.) Second
Question : The base of a right prism is a triangle whose sides are 8 cm, 15 cm and 17 cm, and its lateral surface area is 480 cm$^2$. What is the volume (in cm$^3$) of the prism?
Option 1: 540
Option 2: 600
Option 3: 720
Option 4: 640
Correct Answer: 720
Solution : Given: Lateral surface area of prism = 480 cm2 Lateral surface area of prism = perimeter of base × height Perimeter of triangle = 8 + 15 + 17 = 40 cm Let the height of the prime is $h$ cm ⇒ $40 ×
Question : If $ \frac{k-k \cot ^2 30^{\circ}}{1+\cot ^2 30^{\circ}}=\sin ^2 60^{\circ}+4 \tan ^2 45^{\circ}-\operatorname{cosec}^2 60^{\circ}$, then the value of k (correct to two decimal places) is:
Option 1: 5.55
Option 2: – 6.83
Option 3: – 5.58
Option 4: 6.83
Correct Answer: – 6.83
Solution : Computing RHS, $\sin ^2 60^{\circ}+4 \tan ^2 45^{\circ}-\operatorname{cosec}^2 60^{\circ} = (\frac{\sqrt{3}}{2})^2+4\times1^2-(\frac{2}{\sqrt{3}})^2$ ⇒ $\sin ^2 60^{\circ}+4 \tan ^2 45^{\circ}-\operatorname{cosec}^2 60^{\circ} = \frac{3}{4}+4-\frac{4}{3}$ ⇒ $\sin ^2 60^{\circ}+4 \tan ^2 45^{\circ}-\operatorname{cosec}^2 60^{\circ} = \frac{41}{12}$ Computing LHS, $ \frac{k-k \cot ^2 30^{\circ}}{1+\cot ^2 30^{\circ}} = k(\frac{1- (\sqrt{3})^2}{1+(\sqrt{3})^2})$ ⇒
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