Given, (P + Q)’s 1 day work = 1/30 And (Q + R)’s 1 day work = 1/20 Also, P’s 5 days w + Q’s 15 days w + R’s 18 days w = 1 work ⇒P’s 5 days w + Q’s 5 days w + Q’s 10 days w + R’s 10 day w + R’s 8 day w = 1 work ⇒ (P + Q)’s 5 days w + (Q+ R)’s 10 days w + R’s 8 days work = 1 work ⇒ (5/30) + (10/20) + R’s 8 days work = 1 work ⇒ (1/6) + (1/2) + R’s 8 days work = 1 work ⇒R’s 8 days work = 1 – ( 1/6 + 1/2 ) work ⇒R’s 8 days work = 1 – ((1+3)/6) = 1 - (4/6) = 1 - (2/3) R’s 8 days work = 1/3 work R will complete the work in 8 × 3 = 24 days Alternate Method: P+Q Q+R Time 30 20 Let work = LCM = 60 units Eff 2 : 3 P`xx` 5+Q`xx` 15+R`xx` 18 = 60 P`xx` 5+Q`xx` 5+Q`xx` 10+R`xx` 10+R`xx` 8=60 (P+Q)`xx` 5 + (Q+R)`xx` 10+8R = 60 (2)`xx` 5 + (3)`xx` 10+8R = 60
Statements:
All aeroplanes are trains.
Some trains are chairs.
Conclusions:
I. Some aeroplanes are chairs.
II. So...
Statements :
Only a few year is month
Mostly month is day
Conclusions :
I. All year can be month
II. Few day is year
Statements:
Some One is two
Only a few two are three
All three are four
Only a few four are five
Conclusions:
Statement:
Some buckets are mugs.
Some mugs are tubs.
All tubs are plastics.
No plastics is a white.
Conclusion: <...
In the question below some statements are given followed by three conclusions I, II, and III. You have to take the given statements to be true even...
In the question below some statements are given followed by three conclusions I, II, and III. You have to take the given statements to be true even if ...
Statements:Some lion are tiger.
Some tiger are dog.
No dog i...
Statements: All bottle are cups.
No cup is a plate.
Conclusions: I. No bottl...
Statements: All trains are buses.
All buses are cars.
All cars are bikes.
Conclusions:...
Statements:
Some Distance are Miles
All Miles are Race
Some Race are not Time
Conclusion:
I. Some Miles are not Time<...
