Question
Which survey is most expensive because of the
interviewer's time and travel expenses?Solution
The high cost of reaching respondents in their homes through personal interview surveys has led to a dramatic increase in the use of mall intercept interviews, which are personal interviews of consumers at shopping centres.
If 2x+1, x+2, 2 and 5 are in proportion, then what is the mean proportional between 3.5(1-x) and 8(1+x)?
If p = 11, then what is the value of Â
If (Ax + By - Cz) 2  = 4x 2  + 3y 2  + 2z 2  + 4√3xy - 2√6yz - 4√2xz, then find the value of A
4, 10, 19, 30, 43, ?
((99.9 - 20.9)² + (99.9 + 20.9)² )/(99.9 x 99.9 + 20.9 x 20.9) = ?
...Before servicing, a car runs at a speed of 25 km/hr while after servicing, it runs at a speed of 50 km/h. After servicing the car covers a certain dista...
A train can cross a pole, a bridge of 720 meter long and platform of 640 meter long in 9 seconds, _____ seconds and 25 seconds, respectively.
The...
Simplify the expression:
3x + 5y - [(7x + 3y) - (2x + y) + 4y] - xIf {1/(y + 1) + 1/(y + 5)} = {1/(y + 2) + 1/(y + 4)}. Find the value of yÂ
If x + y + z = 4, xyz = 6 & x2 + y2 + z2 = 8 then find the value of x3 + y3 + z3.