Ratio Problem

The ratio of two quantities is 3 to 4. If each of the quantities is increased by 5, what is the ratio of these two new quantities?
A.3/4
b.8/9
c.18/19
d.23/24
e. It cannot be determined from the information givien.


Answer : E I picked A.

Re: Average (arithmetic mean) number of people registered?

Great thanks !! S18-16 During a 6-day local trade show, the least number of people registered in a single day was 80. Was the average (arithmetic mean) number of people registered per day for the 6 days greater than 90? (1) For the 4 days with the greatest number of people registered, the average (...

Sum of the first digit square?

This was on the question stem of my GMAT exam. I don't remeber the exact question.

It was a DS question.

A. I forgot.

B. 104<= n <=106


I just need some one to explain " sum of the first digit square"?

You can get the GMAT official Guide.

there is also probability associated with each day of rain. so the formula is ncr.(p)^r.(1-p)^(n-r) so it should be [5!/2!3! (1/2)^3(1/2)^2] = 5/16 5C3 is for the number of days it will rain = 10 The total number of outcome for a binomial is 2^5 =32 10/32 = 5/16 Try this problem that it will rain 3...

L is the diameter of Circle S = L is Length of Square Circle S Area = pi * (L/2)^2 = pi*(L^2)/4 D is the diameter of Circle T = D is Diagonal of a Square D^2 = L^2 + L^2 D = Sqrt(L^2 + L^2) Circle T Area = pi * (Sqrt(L^2 + L^2)/2)^2 = pi(L^2 + L^2)/4) = pi*(2L^2)/4 Circle T is 2 times more than Circ...

there is also probability associated with each day of rain. so the formula is ncr.(p)^r.(1-p)^(n-r) so it should be [5!/2!3! (1/2)^3(1/2)^2] = 5/16 5C3 is for the number of days it will rain = 10 The total number of outcome for a binomial is 2^5 =32 10/32 = 5/16 Try this problem that it will rain 3...