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Sequence

25 : 552 : : ...

Question

$25 : 552 :: ? : 1406$ .

A

39

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B

42

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C

48

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D

33

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Solution

The correct option is A $39$
$552 = (25 - 1) \times (25 - 2)$ . Similarly, $(39 - 1) \times (39 - 2) = 1406$ .

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Similar questions

Q. Choose the correct answer from the alternatives given
Directions for questions 1 to 3: Select the related words! number from given alternatives.
25:552::?:1406

Q. Prepare a frequency table taking class intervals 20−24, 25−29, 30−34 and so on, from the following data:

21	20	55	39	48	46	36	54	42	30
29	42	32	40	34	31	35	37	52	44
39	45	37	33	51	53	52	46	43	47
41	26	52	48	25	34	37	33	36	27
54	36	41	33	23	39	28	44	45	38

Write which number in the given sequence replaces the question mark (?)

21, 24, 30, 33, 39, 42, 48, 51, 57, ?

Q. Now work out the steps in your mind. Write the answers directily in the boxes.
33 + 42 =

= 53 + 64

55 + 25 =

Q. Prepare a frequency table of the following scores obtained by 50 students in a test:

42	51	21	42	37	37	42	49	38	52
7	33	17	44	39	7	14	27	39	42
42	62	37	39	67	51	53	53	59	41
29	38	27	31	54	19	53	51	22	61
42	39	59	47	33	34	16	37	57	43

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