TCS Placement: Sample Questions 281 - 282 of 502
Get unlimited access to the best preparation resource for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.
Question 281
Explanation
- Dividing 310 (base 10) by 6, quotient will be 51 and remainder will be 4
- Dividing 51 by 6, quotient is 8 and remainder is 3
- Dividing 8 by 6, quotient is 1 and remainder is 2
- Dividing 1 by 6, quotient is 0 and remainder is 1
- Reversing the order of remainders, equivalent of 310 (base 10) number will be 1234 (base 6) .
- So, equivalent base 6 number is 1234 for decimal number 310.
Question 282
Question MCQ▾
Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a. m and travels towards B at 20 km per hour speed. Another train starts from B at 8. a. m and travels towards A at a speed of 25 km per hour. At what time will they meet?
Choices
Choice (4) | |
---|---|
a. | 11 a. m |
b. | 9 a. m |
c. | 10 a. m |
d. | All of the above |
Answer
c.Explanation
- Distance between A and B is 110 km.
- One train starts from A towards B at 7 a. m with 20 kmph speed.
- Second train starts from B towards A at 8 a. m with 25 kmph speed.
- We are asked to find the time when both trains will meet.
- Let they meet x hrs after 7 a. m
- Distance covered by A in x hrs
- Distance covered by B in hrs = km
So, both trains will meet at 10 a. m