A boat goes 52 km in upstream in 4 hours and takes 3 hours to complete a distance of 21 km in downstream. Find the speed of boat in still water.
Speed of boat in still water = (D + U)/2 Upstream speed (U) = 52/4 = 13 km/hr Downstream speed (D) = 21/3 = 7 km/hr Speed of boat in still water = (13 + 7)/2 = 20/2 = 10 km/hr
Statements: Some girls are boy.
No boy is a men.
Conclusions: I. Some bo...
Statements: All letters are digits.
No number is a digits.
Some words are...
Statements: All counsellors are teachers.
Some teachers are candidates.
All candidates are students.
Conclusions:...
Statements:Some students are Rich.
No Rich is a teacher.
Conclusions:I. Some teacher are not Rich.
II. Some Rich...
Statement :
All balls are pencils.
All keys are balls.
Conclusion:
I. At least some pencils are keys.
II. All pencils are balls.
Statements:No town is a city.
All cities are islands.
Conclusions:I. No island is a town.
II. All islands are cities.
Statements :
Some pens are tables.
No table is a book.
Some books are threads
Some threads are boxes.
Conclusions: ...
Statements:
All microscopes are telescopes
No telescope is a screw
All screws are rockets
Conclusions:
I....
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
Statements:
No Leaves are Guava.
No Apples are Mango.
Some Mango are Guava.
Conclusions:
I. Some Apples are G...
