Question
6 women and 4 children can complete a piece of work in
12 days. If 3 more women join them, they can finish 3/5 of the work in 6 days. Find the time taken by 18 women to complete the entire work.Solution
ATQ,
(6W + 4C) × 12 = (6W + 4C + 3W) × [1/(3/5)] × 6
(72W + 48C) = (9W + 4C) × (5/3) × 6
(9W + 4C) × 10 = 90W + 40C
So, 72W + 48C = 90W + 40C
48C - 40C = 90W - 72W
8C = 18W
1W = (8/18)C = (4/9)C
Now convert all to C:
(6W + 4C) = (6 × 4/9 + 4)C = (24/9 + 4)C = (24 + 36)/9 = 60/9 = 20/3 C
Work = (20/3 C) × 12 = 80C
Now, 18W = 18 × (4/9)C = 8C
So, time = 80C / 8C = 10 days
Statements:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â All TVs are monitors.
                                ...
Read the given statements and conclusions carefully. You have to take the three given statements to be true even if they seem to be at variance from co...
Statements:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Some park are road.
                             ...
Statements:
Only Lift are Stair.
All Ladder are Lift.
No Lift is a Step.
Conclusions:
I. Some Ladder being Stair is n...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
- In each question below are given three statements followed by three conclusions numbered I, II and III. You have to take the two given statements to be tru...
Statements :
Few slate is chalk
Mostly chalk is board
Conclusions :
I. Some slate is not board
II. Some board can be slate
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if t...
Statements: Some giraffe are zebra.
                          All zebra are kangaroo.
Conclusions: I. Some gir...
Some diaries are not pencils. All notebooks are papers. Some diaries are not notebooks
Relevant for Exams:
