A can swim & cross 50m(the length of swimming pool) in 2
min. B can swim & cross 50m in 2min 15sec. Every time when
they meet a bell gong is struck. For 2000m how many bell
sounds might be produced?
Answer Posted / julia jeni
A swims 50mts in 2mins*60=120secs;
B swims 50mts in 2.15mins*60=135secs;
To swim 2000mts, 50mts*40times=2000mts;
so A swims for 120secs*40times=4800secs;
so B swims for 135secs*40times=5400secs;
The common factor for 120secs,135secs is 1080secs.
For A, 4800secs/1080secs=4.4(app 4)
For B, 5400secs/1080secs=5
Therefore A and B meet 4 times and hence bell will struck 4
times...........
| Is This Answer Correct ? | 23 Yes | 8 No |
Post New Answer View All Answers
A plane starts from a place A , it goes 1000 kms south then 1000km east then 1000 km north and 1000km west, what is it distance from the starting place? ans.same starting place.
A small town's industries have a total turnover of Rs. 25,00,000. If the town council plans to raise Rs.170,000 through octroi levy, what % levy should it charge on the industries?
If Rs.1260 is divided between between A, B and C in the ratio 2:3:4, what is C's share?
In a car wheel, two spokes cover 15 degree. Then for the entire car,how many spokes are there?
The base 5 representation of the decimal number 2048 is _____.
A chain is broken into three pieces of equal lenths containing 3 links each. It is taken to a backsmith to join into a single continuous one . How many links are to to be opened to make it ?
If A is travelling at 72 km per hour on a highway. B is travelling at a speed of 25 meters per second on a highway. What is the difference in their speeds in m/sec.
There are 7 people who take a test among which M is the worst, R is disqualified, P and S obtain same marks, T scores less than S and Q scores less than P, N scores higher than every one.
If f(0)=1 and f(n)= f(n-1)*n, find the value of f(4).
Four friends are given named Akansha, Anuska, Anisha, ... , ... Each of them live in a separate home and sleep on one bed. Akansha and Anuska have two extra beds, two of the house have green lawns while the rest have narrow porchs, One of the house has Airconditioner while the rest have fans
A certain street has 500 buildings. A sign-maker is contracted to number the houses from 1 to 500. How many zeroes will he need?
A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his fathe falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min. Tell the speed of river.
an orange galss has orange juice. and white glass has apple juice. Bothe equal volume 50ml of the orange juice is taken and poured into the apple juice. 50ml from the white glass is poured into the orange glass. Of the two quantities, the amount of apple juice in the orange glass and the amount of orange juice in the white glass, which one is greater and by how much?
A bus started from bus stand at 8.00a m and after 30 min staying at destination, it returned back to the bus stand. The destination is 27 miles from the bus stand. The speed of the bus 50 percent fast speed. At what time it retur4ns to the bus stand
G(0)=-1, G(1)=1, G(N)=G(N-1) - G(N-2), G(5)= ?