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1. how many of the following four numbers 2,20, 202, 2020 are prime?
(A) 2
(B) 0
(C)3
(D)1
(E) 4​

By Serenity

1. how many of the following four numbers 2,20, 202, 2020 are prime?
(A) 2
(B) 0
(C)3
(D)1
(E) 4​

About the author
Serenity

Check whether the following numbers
are in continued proportion
2, 4,8​

5. Arrange the following in ascending order :
3 4 –2 – 7
16 -5 3 -7
(i)
(ii)
8’12’ 3 ’16
22′ 18′-21′

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