Question

There was a river in a city. The river was 10 m deep and 100m wide. The water flow in

the river remains continuous and this river is a main source of water in that city. This

river meets to Arabian sea. Water runs from river to sea at the rate of 4.5 km/hour. Many

people in the city depends on that river for their livelihood.

(i) Find the distance covered by river in 1 minute.

a. 80 m

b. 75 m

c. 100 m

d. 50 m

(ii) The speed of water flow of river in m/sec is :

a. 8 m/sec

b. 2.5 m/sec

c. 1.25 m/sec

d. 5 m/sec

(iii) How many cubic meters of water run into sea per second

a. 1250 cubic meter

b. 5000 cubic meter

c. 1500 cubic meter

d. none of these

(iv) Find the flow of water in litres in 1 sec.

a. 12500 litres

b. 125000 litres

c. 1250000 litres

d. 1250 litres

(v) Find the flow of water in litres in 1 MINUTE.

a. 7.5 x 10^7 litres

b. 750000 litres

c. 2.5 x 10^7 litres​

Answer 1

Answer:

a) 80 m

b) 2.5 m/sec

c) 1500 cubic meter

d) 1250 litres

a) 7.5 ×10^7 litres

Hope its the correct answer and it helps