Question : The students of a class donated a sum of INR 2,809 to the Fund. Each student donated as many rupees as the number of students in the class. The number of students in the class is:
Option 1: 49
Option 2: 53
Option 3: 51
Option 4: 47
Correct Answer: 53
Solution : Let the total number of students be $x$. Each student will donate = $x$ Total fund = donation of each student × total number of students ⇒ $2809 = x \times x$ ⇒ $2809 = x^2$ ⇒ $x = 53$ Hence, the correct answer is 53.
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Question : The students of a class donated a sum of INR 2,209. If each student donated as many rupees as the number of students in the class, then the number of students in the class is:
Option 1: 47
Option 2: 49
Option 3: 53
Option 4: 51
Question : Two equal sums are lent at 8% and 4% simple interest p.a, respectively at the same time. The first sum is received 2 years earlier than the other and the amount received in each case is INR 14,500. Each sum is:
Option 1: INR 12,800
Option 2: INR 12,500
Option 3: INR 13,200
Option 4: INR 12,000
Question : A sum (in INR) is distributed between A, B, and C in the ratio 9 : 6 : 11. If A gives INR 500 from his share to C, the ratio of shares of A, B, and C becomes 4 : 3 : 6. What is the sum of shares (in INR) of B and C, in the beginning?
Option 1: INR 8,500
Option 2: INR 9,100
Option 3: INR 7,800
Option 4: INR 7,500
Question : Two equal sums are lent at 10% and 8% simple interest p.a. respectively, at the same time. The first sum was received 2 years earlier than the second one and the amount received in each case was INR 36,900. Each sum was ______.
Option 1: INR 20,500
Option 2: INR 20,200
Option 3: INR 18,100
Option 4: INR 21,500
Question : After deducting 20% from a certain sum, and then 10% from the remainder, there is INR 7,200 left. Find the original sum.
Option 1: INR 9,000
Option 2: INR 10,000
Option 3: INR 7,500
Option 4: INR 7,800
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