Fren the answer is D The shortest way to this kind of problem... When objects are moving in the same direction... Step 1 Calculate the difference of speed... here its...60-50 =10mph Step 2 initial difference between the two objects... Since mary is moving at 50 mph... and paul is 15 minutes behind.....

use the process of substitution...
first
the question can be stated in the following equation (n is the no. of tables)

5!/(3!2!) x n!/{(n-2)! 2!} = 150

or 5 n!/ (n-2)! = 150

use process of substitution
A is the answer

Statement 1: n is a factor of 56 the factor of 56 are 2 x 2 x 2 x 7 the only odd factor is 7 which is odd... therefore A is sufficient Statement 2: 14 is a factor of 2n i.e 2n/14 = k ( an integer) or n/7 = k or n= 7k so n is a multiple of 7 and not necessarily a prime.... only when k =1, it is prime...

lets take an example... in how many ways the alphabets of the word apple be arranged to form new words(may not have meaning) apple has 5 alphabets where there are 2 ps... so even if we interchange p the word will remain same... so before we take this into consideration the permutation will be 5! But...

the sum of the digits can be five in the following cases when the digits of the number are from the following sets 1. (0,0,0,5) 2.(1,0,0,4) 3.(1,2,2,0) 4.(3,2,0,0) 5.(3,1,1,0) 6.(2,1,1,1) from set one the no. of digits with sum 5 = 4!/3!=4 from set two the no. of digits with sum 5 = 4!/2!=12 from se...

I think it is C it is the best i used the process of elimination to get the answer A is wrong because the argument does not talk about other forms of treatment B the argument is not related to insurance C D the time period of treatment is not necessary E Missing work days in not of any concern So it...

the equation be y = mx + c where m = slope c = y intercept Statement 1 m=3c substitute in the eqn y =3cx + c we cant solve for c insufficient Statement 2 x intercept is -1/3 To find x intercept put y = 0 in the equation 0= mx + c c = - mx put the value of x c= - m * -1/3 =1/3m still we dont know the...

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