To find the measure of each interior angle of a regular polygon, we can use a standard formula that relates the number of sides of the polygon to the sum of its interior angles. Since it's a regular polygon, all interior angles are equal.
Correct Option: B) 108°
The question asks about a specific event in 2018: the inauguration of the 'World Hindi Secretariat' in Mauritius. To answer this, one needs to recall which prominent Indian dignitary visited Mauritius around that time and was involved in such a significant cultural event.
In March 2018, the then President of India, Ram Nath Kovind, visited Mauritius. During his visit, he inaugurated the World Hindi Secretariat building in Port Louis, Mauritius. This event underscored India's commitment to promoting the Hindi language globally and strengthening cultural ties with Mauritius.
B) Ramnath Kovind — As President of India in March 2018, Ram Nath Kovind inaugurated the World Hindi Secretariat in Mauritius. This was a key event during his state visit to the island nation.
This problem involves the relationship between speed, distance, and time. The key is that the distance covered remains constant. We first calculate the total distance using the initial speed and time, and then use this distance with the new time to find the required new speed.
B) 56 km/h — As calculated, to cover a distance of 280 km in 5 hours, the vehicle's speed must be 56 km/h.
Find a different figure from the given figures
To find the different figure, we need to identify the pattern or symmetry in each option and determine which one deviates from the others.
Option C is the only figure where the two shapes are different, breaking the pattern of identical shapes mirrored across a line.
Correct Option: C) The figure with a diamond and trapezoid is different because it lacks symmetry with identical shapes.
A sum at the end of 3 years 9 months at 6% simple interest per annum yields a total amount of Rs 2,940. What was the amount invested?
We need to find the principal amount invested, given the total amount, time period, and simple interest rate. We will first convert the time into years, then use the formula for simple interest and total amount to solve for the principal.
The given time is 3 years 9 months.
\[ \text{Time} = 3 \text{ years} + 9 \text{ months} \]\[ \text{Time} = 3 + \frac{9}{12} \text{ years} \]\[ \text{Time} = 3 + \frac{3}{4} \text{ years} \]\[ \text{Time} = 3 + 0.75 \text{ years} \]\[ \text{Time} = 3.75 \text{ years} \]Let \(P\) be the Principal, \(R\) be the Rate of Interest per annum, and \(T\) be the Time in years.
\[ \text{SI} = \frac{P \times R \times T}{100} \]\[ \text{Amount (A)} = P + \text{SI} \]Given: \(A = \text{Rs } 2,940\), \(R = 6\%\), \(T = 3.75 \text{ years}\).
\[ 2,940 = P \left(1 + \frac{6 \times 3.75}{100}\right) \]The amount invested (principal) was Rs 2,400.
B) Rs 2,400 is the correct amount invested.
The diagram shows the three games M, N and L played by the students in a class. Total students who played only one game are:
To find the total number of students who played only one game, we need to analyze the Venn diagram provided. The diagram shows three overlapping circles representing games M, N, and L, with numbers indicating students playing different combinations of games.
\[ \text{Total} = 11 + 41 + 18 = 70 \]
Thus, the total number of students who played only one game is 70.
Correct Option: C) 70
In the modern periodic table, Silicon (Z = 14) is placed between _____ and _______.
To determine the elements between which Silicon (Si) is placed in the modern periodic table, we need to recall its atomic number and its position relative to other elements in the same period and group. The modern periodic table arranges elements by increasing atomic number.
Therefore, Silicon is placed between Aluminium and Phosphorus.
B) Al & P — Silicon (Z=14) is located in Period 3, Group 14 of the periodic table. It is preceded by Aluminium (Al, Z=13) and succeeded by Phosphorus (P, Z=15).
A car was bought for ₹ 16,000. Its value is reduced by 10% per annum. What will be the value after 2 years?
This problem involves calculating the depreciated value of an asset over a period. Depreciation is a reduction in the value of an asset over time, often due to wear and tear or obsolescence. When the depreciation is given as a percentage per annum, it's usually calculated on the value of the asset at the beginning of that year (compound depreciation).
Correct Option: B) Rs 12,960
This is a blood relations question. We need to break down the relationship described step-by-step to determine the final relationship between Manohar and the person in question.
Therefore, Manohar's father's sister's daughter is his cousin.
Correct Option: D) Cousin
The question asks to identify the type of animals referred to as "Hatching animals." This term generally refers to animals that reproduce by laying eggs, from which their young hatch.
C) Oviparous. Oviparous animals are those that lay eggs, and their young hatch from these eggs. Therefore, they are correctly called "Hatching animals."