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28 Jul 2019, 23:58
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A
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Difficulty:
65%
(hard)
Question Stats:
56% (01:59) correct
44%
(02:13)
wrong
based on 209
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Not Attempted Yet
How many different four-letter words can be formed (the words need not be meaningful) using the letters of the word GREGARIOUS such that each word starts with G and ends with R?
(A) 8P2
(B) 8P2/(2!*2!)
(C) 8P4
(D) 8P4/(2!*2!)
(E) 10P2/(2!*2!)
(A) 8P2
(B) 8P2/(2!*2!)
(C) 8P4
(D) 8P4/(2!*2!)
(E) 10P2/(2!*2!)
Archit3110
Updated on: 31 Jul 2019, 02:46
Originally posted by Archit3110 on 29 Jul 2019, 03:57.
Last edited by Archit3110 on 31 Jul 2019, 02:46, edited 1 time in total.
Last edited by Archit3110 on 31 Jul 2019, 02:46, edited 1 time in total.
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Bunuel
GREGARIOUS
to be writTen as GEGAIOUSRR FIRST AND LAST POSITION IS FIXED
the other terms in the middle i.e GEGARIOUSR can be placed in two places in 8P2 ways
IMO A
