If W is the sum of the reciprocals of the 5 consecutive integers from 31 to 35, then W between which of the following two fractions?
A) 1/8 and 1/9
B) 1/7 and 1/8
C) 1/5 and 1/6
D) 1/6 and 1/7
E) 1/4 and 1/3
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Problem Solving Word Problems

clases particulares GMAT: If W is the sum of the reciprocals of the 5 consecutive integers from 31 to 35, then W between which of the following two fractions?
2 de agosto, por hurtado claudio 
In a certain medical survey, 45 percent of the people surveyed had the type A antigen in their blood and 3 percent had bod type A antigen and the type B antigen. Which of the following is closest to the percent of those whit the type A antigen who also had the type B antigen?
30 de julio, por hurtado claudioIn a certain medical survey, 45 percent of the people surveyed had the type A antigen in their blood and 3 percent had bod type A antigen and the type B antigen. Which of the following is closest to the percent of those whit the type A antigen who also had the type B antigen?
A. 1.35%
B. 6.67%
C. 13.50%
D. 15.00%
E. 42% 
GMAT Word Problem Numbers properties, The sum of four consecutive integers is 418. What is the sum of the next four consecutive integers?
25 de julio, por hurtado claudioNumber Properties N5 2
1. The sum of four consecutive integers is 418. What is the sum of the next four consecutive integers?
A) 422
B) 431
C) 440
D) 434
E) 424
2. If 83! has 16 zeroes at the end, how many zeroes will 90! have at the end?
A. 16
B. 17
C. 18
D. 19
E. 20
3. What is the greatest number of identical groups that can be made out of 130 mens and 91 women if no persons are to be left out? (Two groups are identical whenever the number of man in the two bouquets is (...) 
10 exercises GMAT word problem: proportion, ratio, rate, range
20 de julio, por hurtado claudioproportion, ratio, rate, range 1. 15 Java programmers, working in a constant pace, finish a web page in 3 days. If after one day, 9 programmers quit, how many more days are needed to finish the remainder of the job? (a) 5. (b) 2. (c) 8. (d) 4. (e) 6. 2. Two carpenters, working in the same pace, can build 2 desks in two hours and a half. How many desks can 4 carpenters build in 4 hours? (a) 2.4. (b) 3.6. (c) 4.2. (d) 5.5. (e) 6.4 3. . There are 40 students in a classroom, 9/20 of them are (...)

proportion, ratio, rate, range, eXERCISES gmat. There are 40 students in a classroom, 9/20 of them are boys and 4/5 of them are righthanded. How many righthanded boys are there in the classroom?
19 de julio, por hurtado claudioThere are 40 students in a classroom, 9/20 of them are boys and 4/5 of them are righthanded. How many righthanded boys are there in the classroom?
(a) Between 10 and 32.
(b) Between 14 and 32.
(c) Between 10 and 18.
(d) Between 14 and 18.
(e) Between 18 and 36. 
Word Problems GMAT QUANT Aaron will jog from home at x miles per hour and then walk back home on the same route at y miles per hour. How many miles from home can Aaron jog so that he spends a total of t hours jogging and walking?
17 de julio, por hurtado claudioProblem Solving GMAT QUANTITATIVE
Aaron will jog from home at x miles per hour and then walk back home on the same route at y miles per hour. How many miles from home can Aaron jog so that he spends a total of t hours jogging and walking?
A. xt/y
B. (x+t)/xy
C. xyt/(x+y)
D. (x+y+t)/xy
E. (y+t)/xt/y
Te invitamos, haznos llegar tu respuesta a clasesgmatchile@gmail.com, con una pequeña explicaciòn, para comentarla y publicarla. (...) 
GMAT WORD PROBLEM What is the least value of n for which the producto of the first n positive integers is divisible by 110.565?
13 de julio, por hurtado claudioWhat is the least value of n for which the producto of the first n positive integers is divisible by 110.565?
a) 19
b) 8
c) 21
d) 11
e) 13
Estas invitado a enviar tu respuesta, con una pequeña explicaciòn, al correo clasesgmatchile@gmail.com, para ser publicada y comentarla. CH 
Problem Solving GMAT Ratio / Percentage. Recently, fuel price has seen a hike of 20%. Mr X is planning to buy a new car with better mileage as compared to his current car. By what % should the new mileage be more than the previous mileage to ensure that Mr X’s total fuel cost stays the same for the month? (assuming the distance traveled every month stays the same)
12 de julio, por hurtado claudioRecently, fuel price has seen a hike of 20%. Mr X is planning to buy a new car with better mileage as compared to his current car. By what % should the new mileage be more than the previous mileage to ensure that Mr X’s total fuel cost stays the same for the month? (assuming the distance traveled every month stays the same)
(A) 10%
(B) 17%
(C) 20%
(D) 21%
(E) 25
Te invitamos a hacer llegar tu respuesta a clasesgmatchile@gmail.com, con un pequeño desarrollo, para comentarla y publicarla, (...) 
GMAT Distance / Rate Problem, 6 EXERCISES AND ANDWERS SOLVED
12 de julio, por hurtado claudioDistance / Rate Problem N5, N6, N7 1.Anne traveled from City A to City B in 4 hours, and her speed was between 25 miles per hour and 45 miles per hour. John traveled from City A to City B along the same route in 2 hours, and his speed was between 45 miles per hour and 60 miles per hour. Which of the following could be the distance, in miles, from City A to City B? A. 95 B. 115 C. 125 D. 160 E. 180 2.Aaron will jog from home at x miles per hour and then walk back home on the same route at (...)

bateria de 6 ejercicios GMAT WORD PROBLEM con respuestas
5 de julio, por hurtado claudioWORD PROBLEM
1. If the sum of the first 100 positive integers is X, then what is the sum of the first 200 positive integers? a) 2X b) 2X – 100 c) 3X d) 4X 150 e) 4X – 200
2. If the sum of the firts 500 positive integers is 1.000.0000, then what is the sum of the following 1000 positive integers numbers? a) 3.000.000 – 500 b) 5.000.000 – 2.000 c) 5.000.000 – 3.000 d) 3.000.000  300 e) 3.000.000  100
3. If the sum of the first 500 even positive integers is 2.000.000, then what is the (...)