Question
The speed of a bike increases by 4 km/hr after every 1
hour. If the distance travelled by the bike in 1st hour is 27 km, the find the total distance travelled by the bike in 11 hours.Solution
Since, the speed of the bike increases by 4 km/hr after every 1 hour, therefore the bike will travel 4 km extra after every 1 hour. Therefore, distance travelled by the bike in 1st hour = 27 km Distance travelled by the bike in 2nd hour = 27 + 4 = 31 km Distance travelled by the bike in 3rd hour = 31 + 4 = 35 km This form an AP i.e. 27, 31, 35………distance travelled in 11th hour Therefore, total distance travelled by the bike in 11 hours = sum of the AP Distance travelled in 11 hours = (n/2){2a + (n – 1)d} Where n = number of terms = 11, a = 1st term = 27 and d = common difference = 4 Therefore, distance travelled in 11 hours = (11/2){2 × 27 + (11 – 1) × 4} = (11/2)(54 + 40) = 517 km
Statements:
Only a few A are B.
No B is C.
All C are Z.
Conclusions:
I. Some A can be B.
II. Some C can...
Statements: Some racks are tables.
Some tables are chairs.
No chair is a book.
Conclusions: I. Some racks are chairs.
<...Statements:a.Some dogs are not rats
b. Some rats are lions
Conclusions:I. Some dogs are not lions
II. Some lions are not dogs
Statements:
Only Book is Pen.
No Book is Pencil.
Some Pencil are Eraser.
Conclusion:
I. Some Eraser can be Pen.<...
Statements: Only books are staplers.
All pencils are books.
All pencils are glasses.
No glass is a jug.
Conclusions: I....
Statements:
Some Cable are Table
No Table are Chair
All Chair are Rack
Conclusions:
I) Â Some Cable are not Rack...
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:
Only a few Triangle are Circle.
Some Circle are Square.
Only Square are Rectangle .
No Circle is a Cubo...
Statements:
Some TVs are laptops.
Some laptops are computers.
All computers are mobiles.
All mobiles are radios.
...
- Statements:
Some second is minute
Mostly minute is hour
All hour is time
Conclusions:
I. Some time is second
