If (100)0.20 = x, (10)0.60 = y and xz = y2, what is the value of z

1.  4

2.  6

3.  4.2

4.  2.2

4

6

Explanation :
No Explanation available for this question

If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. What is the actual distance travelled by him

1.  80 km

2.  70 km

3.  60 km

4.  50 km

4

50 km

Explanation :
No Explanation available for this question

The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, What is the the speed of the first train

1.  85 km/hr

2.  87.5 km/hr

3.  90 km/hr

4.  92.5 km/hr

4

87.5 km/hr

Explanation :
No Explanation available for this question

[xq/xr](q+r-p).[xr/xp](r+p-q).[xp/xq](p+q-r) =

1.  x(a-b-c)

2.  0.5

3.  1

4.  x(a+b+c)

4

1

Explanation :
No Explanation available for this question

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. What is the ratio of the speed of the train to that of the car

1.  3 : 4

2.  2 : 3

3.  1 : 2

4.  1 : 3

4

3 : 4

Explanation :
No Explanation available for this question

(1/[1+x(q-p)+x(r-p)]) + (1/[1+x(p-q)+x(r-q)]) + (1/[1+x(q-r)+x(p-r)]) =

1.  0

2.  1

3.  0.5

4.  2

4

1

Explanation :
No Explanation available for this question

(6561)0.14 × (6561)0.11 =

1.  16

2.  9

3.  4

4.  1

4

9

Explanation :
No Explanation available for this question

Arun is traveling on his cycle and has calculated to reach point A at 2 pm if he travels at 10 kmph, he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 pm

1.  8 kmph

2.  10 kmph

3.  12 kmph

4.  14 kmph

4

12 kmph

Explanation :
No Explanation available for this question

A car travels at an average of 50 miles per hour for 212 hours and then travels at a speed of 70 miles per hour for 112 hours. How far did the car travel in the entire 4 hours

1.  210 miles

2.  230 miles

3.  250 miles

4.  260 miles

4

230 miles

Explanation :
No Explanation available for this question

What is the value of (2×4×5)5n

1.  25n + 45n + 55n

2.  (405)n

3.  (40)n

4.  (40n)5

4