Question
In a game of 100 points, if A gets 100 points, B gets 10
less than A and C gets 30 less than A. Then, how many points can C get if B gets 180 points?Solution
A : B = 100 : 90, A : C = 100 : 70 B/C = (B/A × A/C) B/C = 90/100 × 100/70 B/C = 90/70 = 9:7 In a game if B gets 180 points B/C = 9/7 = (9 × 20) ÷  (7 × 20) = 180/140 C gets 140 points Alternate method: A:B:C = 100 : 90:70 So now B is 180 , hence ratio of B:C = 90: 70 = 180:x So x = 140
- 42.5% of 20% of 960 = x + 18.4, then find the sum of the squares of each digit in 'x'.
If a = 32, b = c = 31, then find the value of a 3  + b 3  + c 3  – 3abc.
Rs. 25200 is invested in 3 parts in such a way that Simple Interest on 1st Part at 4% per annum for 3 years, Simple Interest on 2nd
If polynomial P(x) = x3 - 3x2 + 5x-3 is divided by polynomial G (x) = x2 - 2, the quotient and remainder are:
A carriage travelling in fog passed along a man who was walking @ 6 km/hr in the same direction. He could see the carriage for 8 minutes and it was visi...
Find the number of zeroes in 16 × 75 × 40 × 125.
Relevant for Exams:
