Related Questions

The respective ratio between the speed of a speed of the car, bus and train is 5 : 9 : 6. The average speed of the car, bus and train is 72 km/hr together. What is the average speed (km/h)of the car and the train together?
A 82
B 72
C 67
D 84
The price per unit of a product increases by 25% . The actual Taka increase in the unit price is Tk.1.25. What was the unit price in Taka before the price increase?
A 5
B 7.5
C 6.25
D 8.75
The price per unit of product increased by 25% The actual taka increase in the unit price was Tk. 1.25. What was the unit price in Taka, before the price increase?
A 5.00
B 6.25
C 7.50
D 8.75
The price per unit of product increased by 25% The actual taka increase in the unit price was Tk. 1.25. What was the unit price in Taka , before the price increase?
A 5.00
B 6.25
C 7.50
D 8.75
Based on the information below, how much did a certain telephone call cost? 1. The call lasted 1 minute 27 seconds 2. The cost for the first 30 second unit is Tk. 1.80, call duration more than 30 seconds costs Tk. 0.90 per 30 second unit 3. Any call duration less than 30 seconds is rounded up to the nearest 30-second unit.
A Tk. 1.80
B Tk. 2.61
C Tk. 2.70
D Tk. 3.51
Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called
A Thermal resistance
B Thermal coefficient
C Temperature gradient
D Thermal conductivity
The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as
A Normal speed
B Unit speed
C Specific speed
D None of these
The specific speed of turbine is defined as the speed of a unit
A Of such a size that it delivers unit discharge at unit head
B Of such a size that it delivers unit discharge at unit power
C Of such a size that it requires unit power per unit head
D Of such a size that it produces unit horse power with unit head
The specific speed of a pump is defined as the speed of a unit of such a size, that it
A Delivers unit discharge at unit head
B Requires unit power for unit head
C Delivers unit discharge at unit power
D None of these
At 10 a.m. two trains started travelling toward each other from stations 287 miles apart. They passed each other at 1:30 pm the same day. They average speed of the faster train exceeded the average speed of the slower train by 6 miles per hour. which of the following represents the speed of the faster train, in miles per hour?
A 38
B 40
C 44
D 48

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