Since the distance is same in all the conditions. Therefore, Average speed = 3xyz/(xy + yz + zx) Average speed = 3 x 24 x 42 x 72/(24 x 42 + 42 x 72 + 24 x 72) Average speed = 3 x 24 x 42 x 72/(1008 + 3024 + 1728) = 217728/5760 = 37.8 km/hr
If -5 ≤ x ≤ 3 and -1 ≤ y ≤ 0, then the minimum value of 2y – 3x is:
Quantity I – In how many ways letters of MOBILE can be arranged when vowels are always together.
Quantity II – In how many ways l...
If (a + b)/c = 6/5 and (b + c)/a = 9/2, then what is the value of (a + c)/b?
There are 6 blue pens, 5 black pens and 4 green pens in a bag. Three pens are chosen randomly.
Quantity I – The probability of their bein...
If 3x + 5y + 7z = 49 and 9x + 8y + 21z = 126, then what is the value of y?
The value of x which satisfies the equation (x+a2+2c2) / (b+c) + (x+b2 +2a2) / (c+a) + (x+c+2b2) ...
If a + b2 + c2 = 16, x2 + y2 + z2 = 25 and ax + by + cz = 20, then the value of (a+b+c)/(x+y+z)
If x1x2x3 = 4(4 + x1 + x2 + x3), then what is the value of [1/(2 + x1)] + [1/(2 + x2)] + [1/(2 + x3)]?
If a + 1/a = -2 then the value of a1000 + a- 1000 is
is equal to:
