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Walking (6/7) th of his usual speed, a man is 12 minutes too late. The usual time taken by him to cover that distance is:
A. 1 hour
B. 1 hour 30 minutes
C. 1 hour 5 minutes
D. 1 hour 12 minutes
E. None of the above
View Answer
View Explanation
D.
1 HOUR 12 MINUTES
Posted in:
Time, Distance and Speed

Aptitude

Mathematics
279
1048
The equations 3x  4y = 5 and 12x  16y = 20 have :
A. no common solution.
B. exactly one common solution.
C. exactly two common solutions.
D. more than two common solutions.
E. None of the above
View Answer
View Explanation
D.
MORE THAN TWO COMMON SOLUTIONS.
Posted in:
Linear Equations

Algebra

Mathematics
618
997
Find the unit's digit in (264)
^{102}
+ (264)
^{103}
.
A. 6
B. 4
C. 24
D. 0
E. 8
View Answer
View Explanation
D.
0
Posted in:
Numbers

Arithmetic

Mathematics
960
964
If $x^2  6x + α = 0 has two roots α, β and 3α + 2β = 20, then find a.
A.  16
B. 8
C. 4
D.  2
E. None of the above
View Answer
View Explanation
A.
 16
Posted in:
Quadratic Equations

Algebra

Mathematics
995
960
A car taken 5 hours to cover a distance of 300 kms.
How much should the speed in km/hour be maintained to cover the same distance in 4/5th of the previous time ?
A. 48 km/hour
B. 120 km/hour
C. 60 km/hour
D. 75 km/hour
E. None of the above
View Answer
View Explanation
D.
75 KM/HOUR
Posted in:
Time, Distance and Speed

Aptitude

Mathematics
425
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