Question
In a school a total of 4,900 pencils were distributed
among all the students in the school. The pencils were distributed in such a way that number of pencils received by each student were 25% of the total number of students in the school. Find the number of pencils each student gets.Solution
Let the total number of students in the school be '4x'. So, the number of pencils received by each student = 0.25 × 4x = 'x' ATQ, Total number of pencils distributed = 4x × x = 4900 Or, x² = (4900 ÷ 4) = 1225 Since, number of pencils cannot be negative. So, x = 35 Therefore, the number of pencils received by each student = x = 35
An investor deposits ₹50,000 in a bank that offers a simple interest rate of 8% per annum. How much interest will the investor earn after 3 years, and...
Let Z = (1+3i)/(1-2i) .Then the argument of z lies in which quadrant?
The cost price of 21 mangoes is Rs.200. Because of bad quality of mangoes, the shopkeeper has to sell mangoes at a loss that is equal to selling price o...
If a relation R on the set of integers Z is defined as
a R b ⇔ a - b ∈ Q,
then the relation is:
- Which type of attack is carried out by an individual who has authorized access to a system?
A mixture of 392 ml consists of milk and honey in the ratio of 9:5. If an additional 48 ml of milk and 400 ml of honey are mixed ...
If sin⁶ x + cos⁶ x = 7/8, find sin⁴ x + cos⁴ x:
If the ratio of the ages of A, B, and C is 2:3:5 and the sum of their ages is 50 years, what is the age of the youngest person?
'P' invested a certain sum of money for 2 years at an annual compound interest rate of 20% and earned a total interest of Rs. 660...
