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objective Ques (34 results)
11)

The speed of a boat in still water is 18 km/h and the speed of the current is 6 km/h. In how much time (in hours) will the boat travel a distance of 90 km upstream and the same distance downstream?

SSC CGL 2019
A)

$$9\frac{1}{2}$$

B)

$$11\frac{1}{4}$$

C)

12

D)

10

12)

Renu was sitting inside train A, which was travelling at 50 km/h. Another train, B, whose length was three times the length of A crossed her in the opposite direction in 15 seconds. If the speed of train B was 58 km/h, then the length of train A (in m) is:

SSC CGL 2019
A)

210

B)

180

C)

160

D)

150

13)

Places A and B are 396 km apart. Train X leaves from A for B and train Y leaves from B for A at the same time on the same day on parallel tracks. Both trains meet after $$5\frac{1}{2}$$ hours. The speed of train Y is 10 km/h more than that of train X. What is the speed (in km/h) of train Y?

SSC CGL 2019
A)

41

B)

54

C)

31

D)

56

14)

A field roller, in the shape of a cylinder, has a diameter of 1 m and length of $$1\frac{1}{4}$$ m. If the speed at which the roller rolls is 14 revolutions per minute, then the maximum area (in square m ) that it can roll in 1 hour is: (Take $$\pi={22\over7}$$ )

SSC CGL 2019
A)

3960

B)

3600

C)

3300

D)

3560

15)

A man starts from his house and travelling at 30 km/h, he reaches his office late by 10 minutes, and travelling at 24 km/h, he reaches his office late by 18 minutes. The distance (in km) from his house to his office is :

SSC CGL 2019
A)

18

B)

16

C)

12

D)

20

16)

A train X travelling at 60 km/h overtakes another train Y, 225 m long, and completely passes it in 72 seconds. If the trains had been going in opposite directions, they would have passed each other in 18 seconds. The length (in m) of X and the speed (in kmph) of Y are, respectively :

SSC CGL 2020
A)

245 and 45

B)

245 and 54

C)

255 and 36

D)

255 and 40

17)

Amit travelled a distance of 50 km in 9 hours. He travelled partly on foot at 5 km/h and partly by bicycle at 10 km/h. The distance travelled on the bicycle is :

SSC CGL 2020
A)

12 km.

B)

13 km.

C)

10 km.

D)

11 km.

18)

The distance between two stations A and B is 575 km. A train starts from station ‘A’ at 3:00 p.m. and moves towards station ‘B’ at an average speed of 50 km/h. Another train starts from station ‘B’ at 3:30 p.m. and moves towards station ‘A’ at an average speed of 60 km/h. How far from station ‘A’ will the trains meet ?

SSC CGL 2020
A)

275 km

B)

225 km

C)

300 km

D)

325 km

19)

In a stream running at 3 km/h, a motorboat goes 12 km upstream and back to the starting point in 60 minutes. Find the speed of the motorboat in still water. (in km/h)

SSC CGL 2020
A)

$$2(2+\sqrt{17})$$

B)

$$2(4+\sqrt{15})$$

C)

$$3(2+\sqrt{17})$$

D)

$$3(4+\sqrt{17})$$

20)

The two trains leave Varanasi for Lucknow at 11:00 a.m. and at 11:30 a.m., respectively and travel at speeds of 110 km/h and 140 km/h, respectively. How many kilometers from Varanasi will both trains meet?

SSC CGL 2020
A)

$$256{2\over3}$$km

B)

$$255{1\over3}$$km

C)

$$246{1\over3}$$km

D)

$$238{2\over3}$$km

showing 11 - 20 results of 34 results