Question
A shopkeeper sold an article for Rs. 300 after offering
a discount of 40%. If he earned a profit of 50%, then find the ratio of cost price to the marked price, of the article.Solution
Marked price of the article = 300 ÷ 0.6 = Rs. 500 Cost price of the article = 300 ÷ 1.5 = Rs. 200 Required ratio = 200:500 = 2:5
A rectangular frame of size 100 cm (length) x 120 cm (breadth) is to be surrounded by stickers of 2 cm x 2 cm size. How many stickers would be required ...
The shape of an toy is a right circular cylinder with a hemisphere on bottom and a right circular cone on the top. The radius of the cylindrical part is...
If the diameter of a solid hemisphere is 12.6cm, then its volume is taken π =22/7
In the given figure, a circle is inscribed in Δ PQR, such that it touches the sides PQ, QR and RP at points D, E, F, respectively. If the lengths of th...
A race track is in the shape of a rectangle with length of 25 metres and area of 4500 m2. A car takes 10 seconds to make one lap around the p...
The volume of a solid cube is 1000 m3. If whole cube is to be painted at a rate of Rs. 6 per m2, then what will be the cost of pai...
The length of a rectangle is 6 metres more than its width. If the perimeter of the rectangle is 60 metres then what is the area (in m2 ) of ...
(160/3)% of the raindrops could have been collected, when 5 cm of rain has fallen on a part of land of area 1.8 km2, in a tank having a 240 m...
The ratio of the breadth to the length of a rectangular field is 3:4. The total cost of cutting the grass of the field at the rate of Rs 12 per m2<...
The ratio of length to breadth of a rectangle is 8:5. When the length and breadth of the rectangle is increased by 40% and decreased by 25% respectively...