Question
If Rina can complete a project in 36 days by working 9
hours a day, how many hours per day should she work to complete the project in 18 days?Solution
ATQ,
Let the efficiency of Rina be 'x' units per hour
Therefore, total work = 9 × 36 × x = 324x units
Let the time she should work to complete the work in 18 days be 'y' hours a day.
ATQ;
324x = 18 × y × x
Or, y = 18
Therefore, she should work for 18 hours a day.
Alternate solution:
Required time = (9 × 36) ÷ 18 = 18 hours
Select the correct mirror image of the given combination when the mirror is placed at MN as shown below.
Out of the following five figures, four are alike in some manner and one differs from these in that manner. Select the odd figure.
Select the figure from the options that when placed in the blank space of the given figure will complete the pattern.
Three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at varianc...
Statement:
I. Cases of obesity, diabetes and other similar diseases are increasing.
II. Fast food also has very few antioxidants and les...
i) Who is sitting in the second place on the left side of the Dani, Chintu is sitting at the fourth place on the right side.
ii) There are three ...
In a certain code language, if GIFTED is written in TRUGVW, how will LUCID be written in the same code language?
Select the correct mirror image of the given combination when the mirror is placed at MN as shown below.
In a certain code language, 'COBBLESTONES' is written as 'BBOCTSELSENO', and 'SATISFACTORY' is written as 'ITASCAFSYROT'. How will 'TACHYCARDIAS' be wri...
Relevant for Exams:
