GMAT Question of the Day (March 11)

Math

$a(ab-1)=0$ : either $a=0$ (and $b=\text{any value}$ , including zero) so in this case $ab=0\neq 1$ [b]OR[/b] $ab=1$ . Two different answers, not sufficient.

(2) $ab^2=b$

$ab^2-b=0$ ;

$b(ab-1)=0$ : either $b=0$ (and $a=\text{any value}$ , including zero) so in this case $ab=0 \neq 1$ [b]OR[/b] $ab=1$ . Two different answers, not sufficient.

(1)+(2) either $a=b=0$ , so in this case $ab=0 \neq 1$ and the answer to the question is NO, OR $ab=1$ and the answer to the question is YES. Two different answers, not sufficient.

Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)

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Verbal

[u]Before its independence in 1947, Britain ruled India as a colony and they would relinquish power[/u] only after a long struggle by the native people.

A. Before its independence in 1947, Britain ruled India as a colony and they would relinquish power

B. Before independence in 1947, Britain had ruled India as a colony and relinquished power

C. Before its independence in 1947, India was ruled by Britain as a colony and they relinquished power

D. Before independence in 1947, India had been ruled as a colony by Britain, which relinquished power

E. Before independence in 1947, India had been a colony of the British, who relinquished power

Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)

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GMAT Question of the Day (March 11)

Miranda Menestrina