Question
Vishal sold an item for a 25% profit. Later, he reduced
the cost price and selling price of the item by 20% and 10%, respectively, from their original values. What is the percentage profit he makes after these adjustments?Solution
Let, original cost price be Rs. ‘x’. So, original selling price = 125% of x = Rs. 1.25x New cost price = 80% of x = Rs. 0.8x New selling price = 90% of 1.25x = Rs. 1.125x So, new profit percentage = {(1.125x – 0.8x)/0.8x} × 100 = 40.6%
The ratio of curved surface area of a right circular cylinder to the total area of its two bases is 2 : 1. If the total surface area of cylinder is 2310...
In ∆ABC , G is the centroid , AB = 20 cm, BC= 24 cm and AC = 28 cm , find GD, where D is the mid-point of BC?

A cuboid of size 50 cm × 40 cm × 30 cm is cut into 8 identical parts by 3 cuts. What is the total surface area (in cm2) of all the 8 parts?...

If O is the orthocentre of ΔABC , if ∠ BOC = 105 0 then what is the measure of ∠ BAC?
If G is the centroid and AD, BE, CF are three medians of ∆BDG with area 6cm 2 , then the area of ∆ABC is?

The scores obtained by a student in his last 15 tests are 14, 22, 18, 22, 14, 14, 28, 30, 14, 22, 18, 30, 20, 22, and 30. Find the difference between th...
What will be circumradius of a right angle triangle whose base is 20cm & height is 21cm ?