Question
Sanya can finish a task by herself in 20 days, while when
working together, Riya and Sanya can complete the same task in 10 days. Riya starts the work alone but leaves after 6 days, after which Sanya completes the remaining work on her own. If the total payment for completing the work under this arrangement is Rs. 6,000, how much of this amount does Riya receive?Solution
ATQ;
Let the total work = L.C.M of 20 and 10 = 20 units
Then, efficiency of 'Sanya' alone = 20 ÷ 20 = 1 unit/day
Combined efficiency of 'Riya' and 'Sanya' = 20 ÷ 10 = 2 units/day
So, efficiency of 'Riya' alone = 2 - 1 = 1 unit/day
Work done by 'Riya' alone in 6 days = 1 × 6 = 6 units
So, payment received by 'Riya' = (6/20) × 6000 = Rs. 1,800
Two statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at a variance with...
Statements-:Â
Some Sons are daughter.
A few daughters is Mother
Many mothers is father
At most Sons are child.
Co...
Statements:
No cup is plate.
Only a few plate is saucer.
Some saucer is spoon.
All spoon is juicer.
Conclu...
Statements: Â Â Â Â Â All counsellors are teachers.
Some teachers are candidates.
All candidates are students.
Conclusions:...
- Statements:
Some second is minute
Mostly minute is hour
All hour is time
Conclusions:
I. Some time is second In the questions given below, there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be...
Statements:Â Â Â Â Â Â Â Â Â Â All pen are pencil.
                               All pencil are mobile.
...
Statements:
All A are B
All B are C
Some C are D
Conclusion:
I. All B are A
II. Some D are A
Statement : Â Only Phone are Charger
Few Battery are phone
None of the Power bank are battery.
Conclusion
I.A few charge...
Statements:
Some Mars are Planets.
Some Planets are not Stars.
Some Stars are Bright.
Conclusions:
I. Â Some Bri...
Relevant for Exams:
