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Let the speed of train C be ‘x’ km/hr. Then, speed of train D = (x + 21) km/hr Time = 3 hours 40 minutes = 3(40/60) = 3(2/3) = 11/3 hrs According to the question, => Speed = Distance/ Time => (x + x + 21) = 495/(11/3) => 2x + 21 = 45 × 3 => 2x = 135 - 21 => x = 57 Speed of train C = x = 57 km/hr Speed of train D = (x + 21) = 78 km/hr
Three statements are given followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at varianc...
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...
Statement:
Some A are B
Only a few B are C
No A is D
Conclusion:
I.At least some A are C
II. All B are C is a possibility
III. No D is C
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...
Statement :
No dog is a cat.
All cats are mats.
Conclusion:
I. Some dogs are mats.
II. All dogs can never be mats.
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...
Statements : All covers are chairs
No chair is a table.
...
Statements:
Some hotels are rooms.
Some rooms are keys.
All keys are bungalows...
Statements:
All charts are graphs.
Some graphs are data.
Some data are details.
Conclusions:
I. Some graphs a...
Statements : Some trains are buses.
Some buses are trucks.
No truck is a car.
Conclusions:I. Some trains are not trucks.
...
