3 years ago

What is the sum of this sequence 1 + 2 + 3 + 4 + ... + 1002

Mathematics

1 answer:

Alex Ar [27]3 years ago

6 0

Answer:

502,503

Step-by-step explanation:

Using Summation formula for 1 and 1 to N number

$S=\frac{n(n+1)}{2} \\S=\frac{1002(1003)}{2} \\S=502,503$

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amid [387]

Answer:

The correct answer is $\frac{1}{1600}$ .

Step-by-step explanation:

A container contains tiles numbered from 1 through 40.

Let the experiment be to drawn a tile randomly from the container. The draws are carried on by replacement method. Then a second tile is drawn randomly.

Probability that the first tile is number 7 = $\frac{Possible outcomes}{Total outcomes}$ = $\frac{1}{40}$

Probability that the second tile is number 25= $\frac{Possible outcomes}{Total outcomes}$ = $\frac{1}{40}$

Thus the probability of the first tile is number 7 and the second tile is number 25 is given by $\frac{1}{1600}$ .

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