Question
If number of children in orphanage F is 25% less than
that in orphanage C, then find the ratio between the number of children in orphanage A and F. Read the following information carefully and answer the given questions: The following pie-chart shows the percentage distribution of number of children in five (A, B, C, D and E) different orphanages. Note:Â Total number of children in all the orphanages is 500.Solution
Number of children in orphanage A = 15% of 500 = 75 Number of children in orphanage C = 20% of 500 = 100 Number of children in orphanage D = 10% of 500 = 50 According to the question, => 75 + 4x + 100 + 50 + x = 500 => 5x = 500 – 225 => x = 55 Number of children in orphanage E = x = 55 Number of children in orphanage B = 4x = 4 × 55 = 220 Number of children in orphanage F = 75% of 100 = 75 Required ratio = 75:75 = 1:1
The volume and height of a cylinder are 4224 cm3 and 21 cm. Find the radius of the cylinder.
On a circular racetrack that measures 4,000 meters in circumference, Kia and Sia begin a race at the same point and at the same time, traveling at speed...
A solid rectangular parallelepiped (cuboid) has dimensions 10 cm × 8 cm × 6 cm. It is melted and cast into small cubes each of side 2 cm. How many suc...
The length and breadth of a rectangular field are 45 m and 28 m respectively. What is its area?
Perimeter of a square field is 120 meters and the area of a rectangular field is 65% more than that of the square field. Find the area (in m2...
A rectangular park is 50 m long and 40 m wide. A path of uniform width is built inside the park along the boundary. The area of the path is 344 m². Fin...
The distance of the School and house of Suresh is 80 km. One day he was late by 1 hour than the normal time to leave for the college, so he increased hi...
The perimeter of a floor a room is 36m. What is the area of four walls of the room, if its height is 6m?
If a triangle with base 7 cm has the same area as a circle with radius 7 cm, then the corresponding altitude (in cm) of the triangle is:Â
If ∆ ABC~∆ FDE such that AB = 9 cm, AC = 11 cm, DF = 16 cm and DE = 12 cm, then the length of BC is:
Relevant for Exams:
