A train 800 metres long is running at the speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in metres) is

1.  77200

2.  500

3.  1300

4.  13

4

500

Explanation :
No Explanation available for this question

A man covered a certain distance at some speed. Had he moved 3 km per hour faster, he would have taken 40 minutes less. If he had moved 2 km per hour slower, he would have taken 40 minutes more. The distance (in km) is

1.  20

2.  35

3.  36

4.  40

4

40

Explanation :
No Explanation available for this question

A man rows a boat 18 kilometers in 4 hours downstream and returns upstream in 12 hours. The speed of the stream (in km per hour) is

1.  1

2.  1.5

3.  2

4.  1.75

4

1.5

Explanation :
No Explanation available for this question

Two trains one 160 m and the other 140 m long are running in opposite directions on parallel rails, the first at 77 km an hour and the other at 67 km an hour. How long will they take to cross each other

1.  7 seconds

2.  7 (1/2) seconds

3.  6 seconds

4.  10 seconds

4

7 (1/2) seconds

Explanation :
No Explanation available for this question

In an examination 70% of the candidates passed in English. 80% passed in Mathematics. 10% failed in both the subjects. If 144 candidates passed in both, the total number of candidates was

1.  125

2.  200

3.  240

4.  375

4

240

Explanation :
No Explanation available for this question

If x = a (b - c), y = b (c - a) and z = c (a - b), then (x/a)3+(y/b)3+(z/c)3=

1.  xyz/3abc

2.  3 xyzabc

3.  3 xyz/ abc

4.  xyz/ abc

4

3 xyz/ abc

Explanation :
No Explanation available for this question

O is any point on the bisector of the acute angle ‹XYZ. The line OP is parallel to ZY. Then ΔYPO is

1.  Scalene

2.  Isosceles but not right-angled

3.  Equilateral

4.  Right-angled and isosceles

4

Isosceles but not right-angled

Explanation :
No Explanation available for this question

In a certain year, the average monthly income of a person is Rs. 3400 and that for the first eight months is Rs. 3160 and for the last five months is Rs. 4120. The income in the eighth month of the year is

1.  Rs. 5080

2.  Rs. 6080

3.  Rs. 5180

4.  Rs, 3880

4

Rs. 5080

Explanation :
No Explanation available for this question

The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is

1.   50 kg

2.  55 kg

3.  45 kg

4.  53 kg

4

45 kg

Explanation :
No Explanation available for this question

1.  70

2.  77

3.  63

4.  56

4