GMAT QUANT, QUESTIONS DISTANCE / RATE WORK /RATE MIXTURE PROBLEMS
DISTANCE / RATE
A man can row at a speed of 5 km/hr in still water. If he rows a certain distance upstream and back to the starting point in a river which flows at 1.5 km/hr, what is his average speed for the double journey? A. 3.5 km/h B. 4.55 km/h C. 5 km/h D. 5.5 km/h E. 6.5 km/h
(b)
Seb’s watch gains 5 seconds in every 3 hours, whereas Lewis’ watch loses 10 seconds in every 2 hours. If both watches are set to (...)
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Problem Solving Word Problems

GMAT QUANT, QUESTIONS: DISTANCE / RATE WORK /RATE MIXTURE PROBLEMS
3 de octubre de 2024, por hurtado claudio 
Language  Number of students Arabic  18 English  16 French  14 The table above shows the number of students at Adam Zachary High School who are proficient in Arabic, English and French. Three students know all these three languages, five students know Arabic and English only, six students know Arabic and French only and four students know English and French only. How many different students are there in the school?
18 de enero de 2022, por hurtado claudioGMAT QUANT Problem Solving level 600, Overlapping Sets
Language  Number of students
Arabic  18
English  16
French  14
The table above shows the number of students at Adam Zachary High School who are proficient in Arabic, English and French. Three students know all these three languages, five students know Arabic and English only, six students know Arabic and French only and four students know English and French only. How many different students are there in the school?
A  25
B  26 (...) 
Harvey runs a 30mile course at a constant rate of 4 miles per hour. If Clyde runs the same track at a constant rate and completes the course in 90 fewer minutes, how fast did Clyde run?
18 de enero de 2022, por hurtado claudioGMAT QUANT Problem Solving level 600, Distance/Rate Problems
Harvey runs a 30mile course at a constant rate of 4 miles per hour. If Clyde runs the same track at a constant rate and completes the course in 90 fewer minutes, how fast did Clyde run?
A. 4.5 miles per hour
B. 5 miles per hour
C. 5.5 miles per hour
D. 6 miles per hour
E. 7 miles per hour 
If n is a prime number greater than 3, what is the remainder when n^2 is divided by 12 ?
18 de enero de 2022, por hurtado claudioGMAT QUANT Problem Solving level 600, Remainders
If n is a prime number greater than 3, what is the remainder when n^2 is divided by 12 ?
(A) 0
(B) 1
(C) 2
(D) 3
(E) 5 
A certain barrel is 1/5 full. When k liters of liquid are added to the barrel, it becomes 2/3 full. In terms of k, what is the capacity of the barrel, in liters?
18 de enero de 2022, por hurtado claudioGMAT QUANT Problem Solving level 600, Fractions/Ratios/Decimals
A certain barrel is 1/5 full. When k liters of liquid are added to the barrel, it becomes 2/3 full. In terms of k, what is the capacity of the barrel, in liters?
A. 3/8*k
B. 7/15*k
C. 15/7*k
D. 7/3*k
E. 8/3*k 
If S is the product of the integers from 1 to 100, inclusive, and T is the product of the integers from 1 to 101, inclusive, what is 1/S+1/T in terms of T ?
18 de enero de 2022, por hurtado claudioGMAT QUANT Problem Solving level 600, Arithmetic
If S is the product of the integers from 1 to 100, inclusive, and T is the product of the integers from 1 to 101, inclusive, what is 1/S+1/T in terms of T ?
A)T/101
B)T/100+100
C)100+T/T
D)102/T
E)T+1/100 
Line J has a yintercept of 6 and passes through point (a,b). What is the slope of Line J in terms of a and b?
18 de enero de 2022, por hurtado claudioGMAT QUANT Problem Solving level 600, Coordinate Geometry, slop
Line J has a yintercept of 6 and passes through point (a,b). What is the slope of Line J in terms of a and b?
A. (a−6)/b
B. (a−b)/6
C. (6−a)/b
D. (6−b)/a
E. (b−6)/a 
The operation ⊗ is defined by x⊗y=xexp2/y+x/y for all numbers x and y, where y≠0. What is the value of (9⊗(−9))+((−9)⊗9))?
18 de enero de 2022, por hurtado claudioGMAT QUANT Problem Solving level 600, Functions And Custom Characters
The operation ⊗ is defined by x⊗y=xexp2/y+x/y for all numbers x and y, where y≠0. What is the value of (9⊗(−9))+((−9)⊗9))?
A. 4
B. 3
C. 2
D. 1
E. 2 
In how many ways can 3 different prizes be distributed among 5 students when a student may get any number of prizes?
18 de enero de 2022, por hurtado claudioGMAT QUANT Problem Solving level 600, Combinations
In how many ways can 3 different prizes be distributed among 5 students when a student may get any number of prizes?
(A) 60
(B) 100
(C) 120
(D) 124
(E) 125 
In a garden, the ratio of roses to tulips is 3:2, and the ratio of tulips to daisies is 4:5. What is the ratio of roses to daisies?
18 de enero de 2022, por hurtado claudioGMAT QUANT LEVEL 600 PROBLEM SOLVING
In a garden, the ratio of roses to tulips is 3:2, and the ratio of tulips to daisies is 4:5. What is the ratio of roses to daisies?
A. 3:5
B. 1:2
C. 2:3
D. 4:5
E. 6:5