ATQ, Time taken by 'Sumit' to complete the whole job alone = 24×( 8/3) = 64 days Let the total amount of work = LCM of 64 and 16 = 64 units Efficiency of 'Sumit' =64/64 = 1 units per day Efficiency of (Sumit + Tarun) = 64/16 = 4 units per day Efficiency of 'Tarun' = 4 − 1 = 3 units per day Desired time = (0.60 × 64/3) = 12.8 days
Which one of the following is the equation for Velocity Time relation?
The expression of (cot θ + cosec θ −1) / (cot θ − cosec θ+1) is equal to
If x + y + z = 19, xyz = 216 and xy + yz + 2x = 114, then the value of √ x3 + y3 + z3 + xyz is :
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...
Find x, given 5 (√5)x+6 = (√5)2x+7 :
If (a + b)/c = 6/5 and (b + c)/a = 9/2, then what is the value of (a + c)/b?
If x + y = 7 and xy = 10, then the value of (1/x3 + 1/x3) is :
If a3 = 117 + b3 and a = 3 + b, then the value of a + b is:
If -5 ≤ x ≤ 3 and -1 ≤ y ≤ 0, then the minimum value of 2y – 3x is:
If x1x2x3 = 4(4 + x1 + x2 + x3), then what is the value of [1/(2 + x1)] + [1/(2 + x2)] + [1/(2 + x3)]?
