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In a class text, to the question, find out 23% of 200, two students answered in following ways:  Student A: 23% of 200 = 23% of (100 + 100) = 23 + 23 = (20 + 20) + (3 + 3) = 46  Student B: 23% of 200 = 200 × \(\frac{23}{100}\) = 2 × 23 = 46 Which of the following statements is the most appropriate in the given context? 1. Since student B has used the standard algorithm, teacher gives full marks to student B and zero to student A 2. Teacher gives full marks to both the students as they have attempted the question using their own algorithms. Both formal and informal algorithms are integral to solving problems in mathematics. 3. Teacher gives zero marks to student A and directs him to redo the question using the algorithm taught in the Class 4. Teacher accepts both the responses but directed student A to refrain from using informal algorithm 
There are five classes class 1, class 2, class 3, class 4 and class 5 in a school. They are one above the other. Class 1 is at the bottom, then class 2 above it and so on. Five videos M1, M2, M3, M4 and M5 are displayed in these given classes. Only one video is displayed in a particular class. Each video is displayed only one time. Video M5 is displayed at an even numbered class. Video M2 is displayed at class 1. Video M1 is displayed at the class just below M5. Video M4 is not displayed at even numbered class. Which of the following statement is not correct?
Rohan is elder brother of Harshda. Rasika is granddaughter of Pooja. Rasika and Kavita are cousin sisters. Rohan is unmarried. Rohan is only uncle of Kavita. Rinki is mother of Kavita. Raj is father of Rohan. Rinki is daughter of?
Quantity 1: The sum of the age of Rohan and Suman at present is 60 years, while the ratio of their ages is 5 ∶ 7. What is the age of Rohan? Quantity 2: The difference between the present age of Rohan and Suman is 12years. 5 years ago the ratio of their ages was 3 ∶ 5 respectively. What is Rohan present age?
Rohan and Sohan started a partnership business with initial investment in the respective ratio of 3: 1. After 4 months, Rohan invested Rs. 2000 more and after 2 more months Sohan invested Rs. 6000 more. If Rohan’s profit share is double of sohan’s profit share after a year, then what was Rohan’s initial investment?
Rohan, Gaurav and Ratika are three siblings. Rohan is 1 year elder to Gaurav. The sum of ages of Rohan and Gaurav is 2 years more than the age of Ratika. After 9 years, the ratio of ages of Rohan and Ratika will be 4 : 5. What will be the age of Ratika 3 years hence?
In the following question, the first and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/passage is split into four parts and named P, Q, R, S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. S1. We go to schools, colleges, universities to complete our education and start earning our livelihood.  P. We take up jobs, practice professions, or start our own businesses so that we can earn money to make our living. Q. But which of these institutions make us capable of managing our own hard-earned money?—probably a very few of them. R. Financial literacy is knowing the basic financial management principles and applying them in our day-to-day life. S. As human beings, we are not expected to know the nitty-gritty of financial management.  S6. But managing our own money in a way that does not negatively affect us and our family is important.
Four students are looking at a map of India with scale of 1 cm = 100 km. Student 1: Let's draw a large scale map our colony now. Student 2: Why do you feel we need a large paper to draw our colony? A small one is enough. Student 3: Large scale does not mean large paper. We need to change the scale. Let's make it 1 cm = 500 km. Student 4: No no, since we only need to draw our colony, a centimeter can show much less distance. Arrange the four students in increasing order of the conceptual clarity (i.e. from least clear to most clear)
S1: Much of our adult behaviour and our attitudes are determined by our upbringing.
P: But the process does not stop here.
Q: In particular by the effects of that small part of society which is our family.
R: As we grow we are constantly and increasingly affected by new forces such as the social pressure of our friends and the larger world of society.
S: The family and our early life have profound effect on our later life.
S6: Psychologists have studied these forces in depth.

The Proper sequence should be:
The ratio between the sum of the ages of 5 students of class A and that of 5 students of class B is 5 : 3. When a 15 years old student of class A is interchanged with a 10 years old student of class B, the ratio between the sum of ages of both the classes becomes 7 : 5. Find the ratio between the sum of the ages of remaining 4 students of class A to that of remaining 4 students of class B?