In DS, when you are able to solve "too easily", you are probably missing a trap.
Q. Which integer is the highest common factor of four positive integers A, B, C, and D?(1) A= 27, B=49.
Unlike what many students will think, this statement is "Sufficient". Because no matter what "C" and "D" are, if HCF of "A" and "B" is 1, the answer is going to be "1".
What is the remainder when (100! + 17) is divided by 7?
100! is a multiple of 7. So, it leaves remainder 0.17 leaves remainder 3 with 7.
So, the answer is 0 + 3 = 3.
"Like" is used for "comparing nouns"."As" is used for "comparing actions"."Such as" is used for "giving examples".
Commas cannot join two independent clauses.Incorrect: Amy sings, she enjoys it.Correct: Amy sings; she enjoys it.Correct: Amy sings, and she enjoys it.
"Do so" is the correct usage when "so" refers to an action."Do it" is the correct usage when "it" refers to a noun.
As "do" generally refers to actions, "do so" is more often correct than "do it".
Present participles and gerunds "look" the same (verb+ing).However, their roles are different.
Present participle acts as a verb or adjective.Jack is running.
Gerund acts as a noun.Running is healthy.
Similar Triangles
All angles are equal.Hence, shape is the same. Size may differ.All corresponding sides, medians, and angle bisectors are in the same ratio; say "k".Areas are in ratio "k^2".
The 3 key subjunctive mood constructions:
1. If + plural form of verb.If I were the Prime Minister, politics would be cleaner.
2. Subject + bossy verb + that + base form of verb.The judge ordered that the cop take the accused away.
3. Subject + bossy verb + that + something be done.The judge ordered that the accused be taken away by the cop.
Don't exhaust official material early- it's a common mistake.Save it for the last few weeks.
The mind-map-strategy for RCs
1.Skim through the first paragraph.Take your eyes off the screen.
2. Ask yourself the paragraph's "purpose" .Purpose is always very, very brief.Avoid paraphrasing the details.
3. Skim through the next paragraph.Take your eyes off.Ask yourself the paragraph's "purpose".Link the purpose of the first paragraph with that of the second.
4. Keep repeating Step 3 for all the subsequent paragraphs.
Do not chase "tricks/tips/shortcuts". Chase "concepts"!
Do not chase "scores"; chase "learning". Scores will follow.
"between" is used when "two elements" are involved."among" is used when "more than two elements" are involved.
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"regard as" : Correct"regard to be" : Incorrect"regard" : Incorrect
Jack regards Tim as a genius. : Correct
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