P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?
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What is the sum of all natural numbers between 100 and 400 which are divisible by 13?
What is the value of x3-1x3+8 when 8x-8x-16=0 ?
The simplest form of 3565/1495 is
If x2+y2+z2-8x+6y-4z+29 = 0, then find the value of z(x+y).
What is the value of cosec 5π/3?
The value of (0.3)2/100=?
If cot(A/2) = x, then x is equal to