Question
720 is divided into two parts in such a way that the
sixth part of the first part and the seventh part of the second are in the ratio 5 : 6. How much percent second part is more than the first part?Solution
First part = x and second part = 720 – x = (x/6)/((720 - x)/7) = 5/6 => x/6 x 7/(720 - x) = 5/6 ⇒ 42x = 21600 - 30x ⇒ 72x = 21600 ⇒ x = 300 Second part will be 720 – 300 = 420 Required percentage = (420 - 300)/300 x 100 = 40%
f(x)=x+ ∣ x ∣ , then the function is:
- What file extension does MS PowerPoint use by default?
The sum of the ages of a father and his son is 50 years. After 5 years, the father's age will be twice that of his son. What are their present ages?
Rohan, Arjun, and Kavita started a business by investing Rs. 3,000, Rs. 3,600, and Rs. 2,400, respectively. After 6 months, Arjun decreased his investme...
A rectangle has a perimeter of 60 cm, and the ratio of its length to its width is 3:2. Find the length of its diagonal.
Which of the following can create the largest printouts:
What is the average number of DELL laptops sold in all the given years?
If log₂(x) + log₂(x − 2) = 3 and x is real, find x.
If the determinant of a 3×3 matrix A is 2, then the determinant of adj(A) is
315 people went to a park. The number of men is 25 more than the number of women and the number of adults is 15 more than the number of children. How ma...
Relevant for Exams:
