Start learning 50% faster. Sign in now
Ratio of efficiency of P and Q = 5:4 Let the efficiency of P and Q be 5x and 4x units per day respectively. Total work = 9x × 25 = 225x units Required time = (0.40 × 225x)/4x = 22.5 days
If A = (7)1/3 + (7) -1/3, then the value of {3A3 – 9A} will be:
√4096 + √(?) + 13 – 29 = 148
if a2 + b2 + c2 = 2(4a -5b -9c)-122 , then a-b-c = ?
If, 4x2 + y2 + 12x + 6y + 18 = 0, then find the value of (2x + y)/(y + 6x).
If a + b = 56 and (a – b)² = 496, find the value of the product of a and b.
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...
√(92×8 ×52+700) = ?