Question
‘R’ completes a job in 10 days. ‘S’ is twice as
efficient as ‘R’. How much time will they take to complete 120% of the work together?Solution
Let total work = 100x units.
Efficiency of R = 100x / 10 = 10x units/day.
S is twice as efficient, so S's efficiency = 2 × 10x = 20x units/day.
120% of work = 100x × 1.20 = 120x units.
Combined efficiency = 10x + 20x = 30x units/day.
Time taken = 120x / 30x = 4 days.
Find the wrong number in the given number series.
7, 15, 46, 93, 282, 561
Find the wrong number in the given number series.
32, 48, 84, 146, 248, 392
Find the wrong number in the given number series.
1900, 1171, 669, 316, 100, - 25
43, 42, 41, 39, 33, 10
33 34 37 42 48 58
Find the wrong number, in the given number series,
24, 48, 88, 144, 224, 304
- Find the wrong number in the given number series.
9, 8, 18, 51, 208, 1045 There are two wrong number series given in question and three relationships has been derived from that you have to answer the correct relationship betwe...
- Find the wrong number in the given number series.
7, 32, 257, 882, 2107, 4132 Find the wrong number in the given number series.
3600, 1440, 576, 230.4, 92.24, 36.864
Relevant for Exams:
