Answer / naseera shaik

3 men = 6 boys (6 men + 2 boys) = 14 boys.
More work, More days {Direct Proportion)
More boys, Less days (Indirect Proportion)
More hours per day, Less days (Indirect Proportion)
Work 1 : 2 }
Boys 14 : 6 } :: 10 : x
Hours per day 8 : 7 }
.-. (1 X 14 X 8 X x) = (2 X 6 X 7 X 10) <=> x = (840/112) = 15/2=7*1/2

6. The values of shares (in Rs).of A, B and C from January to June are as follows. Month A B C January 30 60 80 February 35 65 85 March 45 75 65 April 40 75 82 May 55 75 85 June 50 75 80 i) During this period which share has undergone maximium fluctuation? ii) In which month it is possible to buy B and C selling A? iii) In which month the share values are very low? iv) By purchasing one share of A and 4 each of B and C in the beginning of the period, when should these be sold to get maximum profit?

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