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If x = (2+√3)/(2-√3), y = (2-√3)/(2+√3). Then find out the value of (x²+y²-xy)/(x²+y²+xy)?
(x – 6) 2 + (y + 2) 2 + (z – 4) 2 = 0, then find the value of 4x - 3y + z.
Before servicing, a car runs at a speed of 25 km/hr while after servicing, it runs at a speed of 50 km/h. After servicing the car covers a certain dista...
The average of three numbers a, b and c is 2 more than c. The average of a and b is 48. If d is 10 less than c, then the average of c and d is:
If 343x3 - 27y3 = (7x - Ay) X (Bx2 + y2 + Cxy), then find the value of 3 X (2A + 6B) - 2C.
If (528 – 507 + 195) ÷ 11 + √1296 = x, then {(x/2) + 10} = ?
- If x + 4y = 26 and 4x + y = 41, then find the value of (x - y).
If (m + n) = 9 and mn = 14, then find the value of (m² + n²).

The speed of a car is 25% more than that of a bike. Both of them start from a same point. After travelling for 4 hours, the speed of the bike is increas...