Question
5 men and 6 women can do a piece of work in 6 days while
3 men and 5 women can do the same work in 9 days. In how many days can 3 men and 2 women do the same work?Solution
ATQ, Let the work done by 1 man per day = M and 1 woman per day = W. 5M+6W= 1/6 (Work done in 1 day by 5 men and 6 women). 3M+5W= 1/9 (Work done in 1 day by 3 men and 5 women). From the equations: Solve to find M= 1/42 and W = 1/126 Hence, Work by 3 men and 2 women in 1 day The total time to finish the work is = days = [1/(11/126)] = 126/11 or 11(5/11) days
Select the option in which the pair of letter-clusters share the same relationship as that shared by the given pair of letter-clusters.
TRACK : IAYPR :: ?
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What should come in place of? in the given series based on the English alphabetical order?
MAG, QXE, UUC, YRA, ?
What will come in the place of the question mark (?) in the following equation, if '+' and '×' are interchanged and '–' and are interchanged?
<...A sum of money doubles itself at the compound interest x in 10 years. In how many years it will be four times at the same compound interest?
Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?
WVE, UTG, SRI, QP...
Which of the following numbers will replace the question mark (?) in the given series?
990, 891, 792, ?, 594
What is the code for ‘many?
A, B, C and D are sitting around a circular table facing the centre. Who sits to the immediate right of A?
Statements:
(I) C sits to the...