Mathematics mcqs

two bikes start at the same time from two destination 300 km apart and travel towards each other. if they cross each other at a distance of 130 km from one of the destination, what is the ratio of their speeds?

two bikes start at the same time from two destination 300 km apart and travel towards each other.

none of these

17:13

17:30

13:30

two automobiles are 150 kilometers apart and traveling toward each other. one automobile is moving at 60km/h and the other is moving at 40km/h mph. in how many hours will they meet?

two automobiles are 150 kilometers apart and traveling toward each other. one automobile is moving at 60km/h and the other is moving at 40km/h mph.

1.75

2.5

1.25

2

twelve people from a club, by picking lots. one of them will host a dinner for all once in a month. the number of dinners a particular member has to host in one year is--------?

twelve people from a club, by picking lots. one of them will host a dinner for all once in a month.

one

three

zero

cannot be determined

twelve children take sixteen days to complete a work which can be completed by 8 adults in 12 days. after working for 3 days, sixteen adults left and six adults and four children joined them. how many days will they take to complete the remaining work ?

twelve children take sixteen days to complete a work which can be completed by 8 adults in 12 days.

3 days

6 days

8 days

4 days

three towns x, y, and z are on a river which flows uniformly. y is equidistant from x and z. if a boats man rows from x to y and back in 10 hours and x to z in 4 hours, find the ratio of speed of the boats man in still water to the speed of the current.

three towns x, y, and z are on a river which flows uniformly. y is equidistant from x and z.

2:05

1:02

3:05

5:03

three taps a, b and c can fill a tank in 12, 15 and 20 hours respectively. if a is open all the time and b and c are open for one hour each alternately, the tank will be full in---------?

three taps a, b and c can fill a tank in 12, 15 and 20 hours respectively.

6 2/3 hours

7 1/2 hours

7 hours

6 hours

three quantities x, y and z are such that xy=kz where k is constant. initially, x was at 4 and x:y:z was 2:3:4. if the value of y is changed to 12 and z is kept constant, find the value of x.

three quantities x, y and z are such that xy=kz where k is constant. initially, x was at 4 and x:y:z was 2:3:4.

6

3

5

2

three pipes a, b and c can fill a tank in 6 hours. after working at it together for 2 hours. c is closed a and b can fill the remaining par in 7 hours. the number of hours taken by c alone to fill the tank is?

three pipes a, b and c can fill a tank in 6 hours. after working at it together for 2 hours. c is closed a and b can fill the remaining par in 7 hours.

12

16

14

10

three persons invested rs.9000 in a joint business. the second person invested rs.1000 more than the first and the third rs.1000 more than second. after two years, they gained rs.5400. how much third person will get?

three persons invested rs.9000 in a joint business. the second person invested rs.1000 more than the first and the third rs.1000 more than second.

rs.3600

rs.2400

rs.2850

rs.2000

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