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Here, options A and E are close. Others are directly eliminated as they are not relevant. Option A cannot be selected due to pronoun ambiguity error in usage of 'their'. Hence, option E is the correct answer.

by adthedaddy

Thu Jul 19, 2018 4:39 am
Forum: Sentence Correction
Topic: Like their male counterparts, women scientists are above
Replies: 1
Views: 933

This is a mixed Permutation and Combination problem. There are 2 vowels in the word 'NUMBERS'. There are 5 possible positions of the seven letter word NUMBERS where the vowels can be arranged alternately. Using V for vowel and C for consonant, they are - VCVCCCC CVCVCCC CCVCVCC CCCVCVC CCCCVCV Thus,...

by adthedaddy

Fri Sep 25, 2015 11:13 pm
Forum: Problem Solving
Topic: Arranging the letters
Replies: 4
Views: 1865

Hi Matt, Please help understand the following - Any two-digit number ab can be written as 10a + b, so we have (10a + b) - (10c + d) = x, where x is the original difference. After exchanging the tens digits, we have (10a + d) - (10c + b) = x - 4 Doesn't exchanging the tens digits mean we interchange ...

by adthedaddy

Fri Sep 25, 2015 9:30 pm
Forum: Problem Solving
Topic: Number System
Replies: 2
Views: 1482

Hi datonman, I would take the following approach to solve this. If one machine takes 12 hrs to print 600 copies then in 1 hr it prints 50 copies. Now, one machine takes one hour to print 50 copies, then 3 machines will print 3x50=150 copies in one hour. Using simple arithmetic rules, If 150 copies a...

by adthedaddy

Fri Sep 25, 2015 8:43 pm
Forum: Problem Solving
Topic: printing company word problem
Replies: 2
Views: 1749

SC Question

Before Budapest was Budapest, it was Aquincum , a Celtic settlement that would go on to become the Roman capital of Lower Pannonia. A) Before Budapest was Budapest, it was Aquincum B) Before there was Budapest, it was Aquincum C) Before it was Budapest, it was Aquincum D) Budapest was once what was...

by adthedaddy

Thu Sep 24, 2015 7:41 pm
Forum: Sentence Correction
Topic: SC Question
Replies: 1
Views: 1395

Word problem - Grain sacks ordering

Tom has 45 bushels of wheat, 63 bushels of rice, and 18 bushels of quinoa. He wants to order sacks of a single size such that he can fill each sack completely full of one type of grain without having any extra grain left over. What is the minimum number of sacks that Tom must order? A) 9 B) 14 C) 18...

by adthedaddy

Thu Sep 24, 2015 7:41 pm
Forum: Problem Solving
Topic: Word problem - Grain sacks ordering
Replies: 5
Views: 2288

SC

The seeming absence in the universe of a quantity of mass able to explain various phenomena, specifically gravitational effects, believed to be evidence for the existence of dark matter. A) believed to be B) is believed to be C) some believe it to be D) some believe it is E) it is believed that it i...

by adthedaddy

Thu Sep 24, 2015 7:32 pm
Forum: Sentence Correction
Topic: SC
Replies: 2
Views: 1353

Number System

If q is positive two-digit integer and p is the units digit of q, is 10<q<50 ?

1. p is more than the tens digit of q.
2. 4p-1 = q

Standard DS options follow

by adthedaddy

Thu Sep 24, 2015 7:29 pm
Forum: Data Sufficiency
Topic: Number System
Replies: 2
Views: 1312

Exponents

Is 3^m less than 2000 ?

1. 3^m+1 > 2000
2. 3^m-1 = 3^m-486

Standard DS options follow.

by adthedaddy

Thu Sep 24, 2015 7:27 pm
Forum: Data Sufficiency
Topic: Exponents
Replies: 1
Views: 1156

Word problem

Pam owns an inventory of unopened packages of corn and rice, which she has purchased for $17 and $13 per package, respectively. How many packages of corn does she have ?

1. She has $282 worth of packages
2. She has twice as many packages of corn as of rice

Standard DS options follow.

by adthedaddy

Thu Sep 24, 2015 7:25 pm
Forum: Data Sufficiency
Topic: Word problem
Replies: 1
Views: 1410

Inequalities

If x and y are positive integers, is

root(x+y+1) > 3root(x+1) ?

1. y > 8x + 8
2. x+y > 8x + 8

Standard DS options follow.

Please help understand this.

by adthedaddy

Thu Sep 24, 2015 7:23 pm
Forum: Data Sufficiency
Topic: Inequalities
Replies: 1
Views: 1124

Fractions

If x = 1/10 + 1/12 + 1/13 + 1/14 + 1/15, which of the following is true ?

A) 7/15 > x > 1/2
B) 1/2 > x > 1/3
C) 1/3 > x > 1/5
D) 1/5 > x > 1/7
E) 1/7 > x > 1/9

Please suggest an easy way to solve this question.

by adthedaddy

Thu Sep 24, 2015 7:20 pm
Forum: Problem Solving
Topic: Fractions
Replies: 2
Views: 1191

Integers

What is the smallest positive integer that is divisible by every odd integer between 1 and 10 inclusive?

A) 105
B) 315
C) 945
D) 3780
E) 7560

Please help

by adthedaddy

Thu Sep 24, 2015 7:14 pm
Forum: Problem Solving
Topic: Integers
Replies: 3
Views: 1459

Number System

If two 2-digit positive integers have their resp tens digits exchanged, the difference between the pair of integers changes by 4. What is the greatest possible difference between the original pair of integers?
A) 76
B) 80
C) 82
D) 90
E) 94

by adthedaddy

Thu Sep 24, 2015 7:12 pm
Forum: Problem Solving
Topic: Number System
Replies: 2
Views: 1482

PS Question

If n=3x4xp, where p is a prime number greater than 3, how many different positive non-prime divisors does n have, excluding 1 and n ?
A) Six
B) Seven
C) Eight
D) Nine
E) Ten

by adthedaddy

Thu Sep 24, 2015 7:10 pm
Forum: Problem Solving
Topic: PS Question
Replies: 1
Views: 1275