Is there an option to bookmark questions ?

Hi All,

Is there an option to bookmark a question for later reference ?

Thanks,
syr

Consider H as height of S and h as height of s Since S and s triangles are similar, So, H/S = h/s Therefore, H/h = S/s or h/H = s/S A(triangle S) = 2 A(triangle s) therefore, 1/2 * S * H = 1/2 * s * h ie. S = 2 * s * (h/H) = 2 * s * (s/S) S^2 = 2 * s^2 Taking root S = Root(2) * s Thus, the answer HT...

Congratulations!!

Fantastic score !

I will give it my best shot .. Read the whole argument just as you would read a normal argument. Now read the first boldface statement. From among the answer choices, read the first part of the answer, and try to determine into which type the first boldface fits into. Consider the first boldface -- ...

First of all, this should be posted in the Problem Solving (PS) section of the GMAT. This is the Data Sufficiency (DS) section Here is the explanation -- Given, R can complete the job in 9hrs. Therefore, in 1 hr he can complete 1/9th of the job. This is basically his rate. R -> 1/9 th of work in 1 h...

1) a is not divisible by 7 Cannot determine. Since we dont know b. 2) a - b is divisible by 7 In this case, taking examples -- 18 - 4 divisible by 7, but 18 + 4 not divisible by 7 10 - 3 divisible by 7, but 10 + 3 not divisible by 7 7 - 0 divisible by 7, but 7 + 0 divisible by 7 3) Taking both stmt ...

Solution

Here you go ..

s = 100 * 101 * .... * 200
t = 100 * 101 * .... * 200 * 201
i.e t = s * 201

Therefore, s = t/201
Also, 1/s = 201/t

Hence,
1/s + 1/t
= 201/t + 1/t
= 202/t

Hope that helps.

Thanks,
syr

stuck at stmt 2

Given : m, p integers & 2 < m < p & p/m = NQ + r ; N - integer, Q - quotient, r - remainder Is r > 1 ? Stmt 1) GCD (m,p) = 2 Plugging numbers - m p GCD( 4, 6) = 2 GCD( 8, 10) = 2 So, m, p have to be consecutive even integers for GCD to be 2 & m not a factor of p. Hence, r = 2. Stmt 1) su...