Numbers are arranged in a triangle as shown. There are
three numbers in Row 2 and five numbers in Row 3. If
the pattern is continued, how many numbers are there in
Row 20 and what is the first (left)
number in Row 20?
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Answer:
there will be 39 numbers in 20th row.
and first number from left in 20th row is 462.
hope it helps u dear ☺️☺️☺️
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