A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be?
Answer: 12.5 m
Explanation
Let the height of the building be x meters.
Less lengthy shadow, Less in the height (Direct Proportion)
∴ 40.25 : 28.75 :: 17.5 : x ⇔ 40.25 × x = 28.75 × 17.5
x = 28.75 × 17.5/ 40.25 ⇒ x = 12.5
This question appeared in
Past Papers (8 times)
FPSC 5 Years Past Papers Subject Wise (Solved With Details) (1 times)
FPSC Past Papers (1 times)
Inspector Customs, Intelligence Officer Past Papers, Syllabus (2 times)
PPSC 5 Years Past Papers Subject Wise (Solved with Details) (2 times)
PPSC Inspector Cooperative Societies Past Papers (1 times)
PPSC Past Papers (1 times)
This question appeared in
Subjects (2 times)
MATHS MCQS (2 times)
Related MCQs
- Raul is 6 feet tall and he notices that he casts a shadow that" s 5 feet long- He then measures that the shadow cast by his school building is 30 feet long, the height of the building in feet is -----
- The angle of elevation of the sun, when the length of the shadow of a tree is equal to the height of the tree is?
- The height of a rod is 3 feet, whereas the length of its shadow is √3 feet. What is the angle between the ground and Sun at that time?
- At a particular time shadow of a pole 40 m long is measured to be 30m. If the length of a plaza is 200 m then how long would the shadow be at about the same time?
- The ratio of the length of a rod and its shadow is 1: √3. The angle of elevation of the sun is _____?
- Measure of shadow of 5m long electric pole is 3m. Find the distance from the tip of the pole to the tip of shadow?
- How many bricks each measuring 25cm length, 11.25cm breadth, and 6cm height, will be needed to build a wall of 8m length, 6m height, and 22.5cm wide?
- Ahmad stands at point D, 2m in front of a spotlight at point A. He is 1.6m tall and is facing the wall of a building which is 10.5m away from him. How tall (BC) is his shadow on the wall of the building
- The sum of length, breadth, and height of a room is 19 m. The length of the diagonal is 11 m. The cost of painting the total surface area of the room at the rate of Rs. 10 per m^2 is:
- When Earth is between the Moon and the Sun, this forms a shadow of the Earth, and the Moon passes through this shadow of the Earth, causing a ______?
