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Find the age of Seventh Person
6 Persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. Hence the current average age has become 45. Find the age of seventh person?a) 43 b) 69 c) 52 d) 31.
Anna
- Oct 29th, 2016
Its totally not 19. Its supposed to be bigger. It can only be 52 or 69. 19 is too far
lavanya.rjs
- Jan 4th, 2011
Avg age of 6 persons after 2 yrs will be 43,hence present avge age of 6 persons should be 41, (= 246/6)when 7th person has joined avg is 45, (=315/7)hence 7th person's age will be (315- 246)= 69yrs.
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Exhibition Entry Ticket
Entry ticket to an exhibition ranges from 1p to 7p. You need to provide exact change at the counter. You have 7p coin. In how many parts will you divide 7p so that you will provide the exact change required and carry as less coins as possible?a) 8 b) 7 c) 5 d) 3
Mark Haynes
- Apr 20th, 2012
D) 3
Divide the 7p into 1p, 2p, and 4p.
1p = 1p
2p = 2p
3p = 1p + 2p
4p = 4p
5p = 4p + 1p
6p = 4p + 2p
7p = 4p + 2p + 1p -
Questions Sheet
A sheet of paper has statements numbered from 1 to 40 for all values of n from 1 to 40, statement n says: exactly n of the statements on this sheet are false." which statements are true and which are false?(a) all statements are false (b) the odd no. statements are true and even are false (c) the 39 th statement is true and the rest are false (d) the even no. are true and odd No. are false
kr.srjith
- Dec 2nd, 2010
Half of the values will be true and other will be falset represent true, f represent false, compare it ti boolean logic complementing each time 1) f2) t f 3) f t f4) t f t f5)f t f t f.....20)t f t f t f t f t f t f t f t f t f t f
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10 Suspects and Police
10 suspects are rounded by the police and questioned about a bank robbery. Only 1 of them is guilt. The suspects are made to stand in a line& each person declares that the person next to him on his right is guilty. The right most person is not questioned. Which of the following possibilities are trueA. all suspects are lying or the leftmost suspect is innocentB. all suspects are lying and the leftmost...
