Ho spent the summer in Paris trying to lock in the agreement, but the French government was purposely evasive, as it was conspiring to undermine Vietnamese independence. Ho was nevertheless well received in the French media. A French reporter who met him noted his “engaging manner and extraordinary gift for making contact,” which “at once brought a warm and direct exchange of views and gave a startlingly fresh ring to commonplace words.”  Ho returned to Vietnam in October and appealed to the Vietnamese people for patience. The French, however, showed their hand on November 22, 1946. Using a dispute over control of customs in Haiphong as a pretext, French warships bombarded the unprotected port city, killing at least 6,000 and wounding some 25,000. On December 19, Ho issued a call for “nationwide resistance”:
Arithmetic Progression, Geometric Progression and Harmonic Progression are interrelated concepts and they are also one of the most difficult topics in Quantitative Aptitude section of Common Admission Test, CAT. We will discuss them one by one.
Arithmetic Progression (AP)
The progression of the form: a, a + d, a + 2d, a + 3d … is known as an AP with first term = a,and common difference = d.
In an AP a, a + d, a + 2d, a + 3d, …, we have:
(i) nth term, T n = a + (n – 1)d
(ii) Sum to n terms, where l is the last term.
(iii) If a, b, c are in AP, then b is called with arithmetic mean (AM) between a andc. In this case, b = (a + c).