# A pen is listed for Rs. 12. A discount of 15% is given on it. A second discount is given bringing the price down to Rs. 8.16. The rate of second discount is

1.  20%

2.  15%

3.  18%

4.  25%

4

20\%

Explanation :
No Explanation available for this question

# The distance between the centres of two equal circles each of radius 3 cm is 10 cm. The length of a transverse tangent is

1.  4cm

2.  6cm

3.  8cm

4.  10cm

4

8cm

Explanation :
No Explanation available for this question

# Two trains 105 metres and 90 metres long, run at the speeds of 45 km/hr and 72 km/hr respec- tively, in opposite directions on parallel tracks. The time which they take to cross each other, is

1.   8 seconds

2.  6 seconds

3.  7 seconds

4.  5 seconds

4

6 seconds

Explanation :
No Explanation available for this question

# The area of an isosceles triangle ; is 4 square unit. If the length of the third side is 2 unit, the length of each equal side is

1.  4 unit

2.  2√3 unit

3.  √l7 unit

4.  3√2 unit

4

√l7 unit

Explanation :
No Explanation available for this question

# A train travelling at a speed of 30 m/sec crosses a platform, 600 metres long, in 30 seconds. The length (in metres) of train is

1.  120

2.  150

3.  200

4.  300

4

300

Explanation :
No Explanation available for this question

# The area of the curved surface and the area of the base of a right Circular cylinder are a square cm and b square cm respectively. The height of the cylinder is

1.  2a/ √b cm

2.  a√b/ 2√? cm

3.  a/ 2√?b cm

4.  a√?/ 2√b cm

4

a/ 2√?b cm

Explanation :
No Explanation available for this question

# 10.A train passes a platform 110 m long in 40 seconds and a boy standing on the platform in 30seconds . The length of the train is

1.  100m

2.  110m

3.  220 m

4.  330 m

4

330 m

Explanation :
No Explanation available for this question

# The marked price of a shirt and trousers are in the ratio 1:2. The shopkeeper gives 40% discount on the shirt. If the total discount on the set of the shirt and trousers is 30%, the discountt, offered on the trousers is

1.  15%

2.  20%

3.  25%

4.  30%

4

25\%

Explanation :
No Explanation available for this question

# A train with a uniform speed passes a platform,122 metres long, in 17 seconds and abridge, 210 metres long, in 25 seconds. The speed of the train is

1.  46.5 km/hour

2.  37.5 km/hour

3.  37.6 km/hour

4.  39.6 km/hour

4

39.6 km/hour

Explanation :
No Explanation available for this question

1.  12.4kmph

2.  14.6kmph

3.  18.4kmph

4.  21.6 kmph

4