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ATQ, S alone can do the work in 16/0.4 = 40 days Let, total work be LCM of 36 and 40 = 360 units Units of work done by R in a day = 360/36 = 10 Units of work done by S in a day = 360/40 = 9 Units of work done by S on 10 days = 9 × 10 = 90 Remaining work = 360 – 90 = 270 units Let, M can do ‘m’ units work per day So, 270/(10 + m) = 12 270 = 120 + 12m 12m = 150 m = 12.5 Required time taken = 360/(9 + 12.5) = 720/43 days
Select the set in which the numbers are related in the same way as are the numbers of the given set. (NOTE: Operations should be performed on the whole ...
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE : Operations should be performe...
If 1st January 2017 was a Thursday, then what day of the week was it on 31st March of that year?
Select the option that is related to the fifth term in the same way as the second term is related to the first term and fourth term is related to the th...
Ketan starts from Point Y and drives 24 km towards the north. He then turns left and drives 23 km, takes a left and drives 91 km. He then takes a left t...
Which of the following numbers will replace the question mark (?) in the given series?
13, 21, ?, 69, 133
In a certain code language,
‘A + B’ means ‘A is the son of B’,
‘A – B’ means ‘A is the sister of B’,
‘A × B’...
Select the number from among the given options that can replace the question mark (?) in the following series.
63, 78, 108, 153, ?
If ‘+’ means ‘÷’, ‘–’ means ‘+’, ‘×’ means ‘−’ and ‘÷’ means ‘×’, what will be the value of the following expres...
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
CB_W V_SP _NLI HG_B A_XU