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Let the usual speed be x km/hr New speed = 125% of x = 5x/4 km/hr Distance = 217.5 km According to the question 217.5/x – 217.5/(5x/4) = 90/60 217.5 x [(5 – 4)/5x] = 3/2 Therefore, x = 217.5 x (1/5) x (2/3) = 29 km/hr
The total number of even factors of 25 × 33 × 52 is:
If x + y + z = 19, xyz = 216 and xy + yz + 2x = 114, then the value of √ x3 + y3 + z3 + xyz is :
The value of the expression (1 + sec22° + cot68°)(1 – cosec22° + tan68°) is
If the nine-digit number 43x1145y2 is divisible by 88, then the value of (3x — 2y), for the smallest value of y, is:
x, y and z are real numbers. If x3 + y3 + z3 = 13,x + y + z = 1 and xyz = 1, then what is the value of xy + yz + zx?...
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 (a2 − b2)sin θ + 2ab cos θ = a2 + b2, then tan θ =
If P = 7 + 4√3 and PQ = 1, then what is the value of 1/P2 + 1/Q2?
If (x - 1/x)2 = 3, then the value of x6 + 1/x6 equals
If a + b + c = 0 then the value of (1/(a+b)(b+c)) + (1/(b+c)(c+a)) + (1/(c+a)(a+b)) is