Related Questions

Mr. Ali decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
A 23 steps
B 16 steps
C 46 steps
D 26 steps
A problem is given to three students whose chances of solving it are 1/2, 1/3 and 1/4 respectively. What is the probability that the problem will be solved?
A 1/4
B 2/3
C 1/2
D 3/4
Identify the incorrect word phrase in the following:In a puzzle, problems are solving gives (A) designing  as mental challenges (B) Solving which (C) gives  the solver a (D) designing experience. 
A A
B B
C C
D D
Of 30 integers, 12 are in set A , 22 are in set A , 22 are in set B , and 7 are in both set A and B. How many of the integers in NITTHER set A nor set B?
A 4
B 1
C 3
Which area in an Excel window allows entering values and formulas?
A Title Bar
B Menu Bar
C Formula Bar
D Standard Tool Bar
Which area in an excel window allows entering values and formulas
A Title bar
B Menu bar
C Formula bar
D Standard toolbar
Which of the following formulas is not entered correctly?
A =10+50
B =B7*B1
C =B7+14
D 10+50
Which of the following formulas will Excel not be able to calculate?
A =SUM(Sales)-A3
B =SUM(A1:A5)*.5
C =SUM(A1:A5)/(10-10)
D =SUM(A1:A5)-10
If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width
A R + T
B T - R
C $$\sqrt {{{\text{R}}^2} + {{\text{T}}^2}} $$
D R - T
There are 26 steps in a shopping mall, In the time Zaman comes down two steps, Ahmed goes one step up. If they start simultaneously and keep their speed uniform, then at which step from bottom will they meet?
A 8th
B 9th
C 10th
D 11th

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