Downstream speed of the boat = 120/12 = 10 km/hr Upstream speed of the boat = 100/10 = 10 km/hr Speed of boat in still water = (10 + 10)/2 = 10 km/hr Distance travelled by the boat in still water in 5 hours = 10 × 5 = 50 km
Metallurgy is the process of:
What happens to the boiling point of water at higher altitudes?
Which chemical is also known as carbolic acid?
A galvanometer is used to:
The most abundant metal in the Earth's crust is:
Which of the following statement is/are true?
I. Atomic radius increases in moving from left to right along a period.
II. Atomic size...
Why do metals conduct electricity?
The percentage of nitrogen in urea is :
Which chemical is used to generate light to weld metals?
Name the source from which aspirin is produced?
