Question
Amit purchased a bike for Rs. 18,000. He spent 20% of
the cost he paid for the bike on repairs. Afterward, he sold the bike to Chaman and made a profit of 25%. Calculate the amount that Chaman paid to Amit.Solution
Total cost of the bike for Amit = 18000 × 1.20 = Rs. 21,600 Amount paid by Chaman = 21600 × 1.25 = Rs. 27,000
The curved surface area of a cylinder is 462 cm² and its base area is 346.5 cm². What is the volume (in cm³) of the cylinder? (Use π =...
If x, y and z are real numbers such that (x-5)2+(y-8)2+(z-12)2= 0 then (x+y+z) is equal to
What is the HCF of (x³ + 3x² - x - 3) and (x³ + 4x² + x - 6)?
If x = 222, y = 223 and z = 224, then find the value of x³ + y³ + z³ – 3xyz
If x2 – xy + y2 = 16 and x4 + x2y2 + y4 = 320 then find x2 + xy + y2...
If (2a + b)/(3b - 2b) = 13/2 then 'b' is what percent of 'a'?
If x ,y,z are three integers such that x +y = 8,y +z =13 and z +x =17,then the value of x2 /yz  is:
If sin 28° = 15/17 , then tan 62° = ?
If a + b + c = 11, ab + bc + ca = 3 and abc = -135, then what is the value of a³ + b³ + c³ ?
A train takes 25 seconds more to cross a 750 metres long platform than it does to cross a 350 metres long bridge. If the time tak...
Relevant for Exams:
