relative density= density of the part submerged in water/ density of water
Therefore,relative density=2/3
81) A block of wood floats in water with (2/3) rd of its volume submerged. Its relative density is
Answer is:
2/3
Explanation:
Related RRB JE Mechanical Question Paper 2014 (Set-2) with Answers
Answer is:
Higher
Explanation:
Mechanical efficiency of gas turbines as compared to I.C engines is Higher
Answer is:
Rs. 750
Explanation:
Answer will be rupees 750.
Because the SP of an article is Rs 450.
Then, find CP.
The formula of CP is SP/1 - loss/100.
So, here SP is 450.
Then CP will be;
= 450/1 - 25/100.
= 450/75/100.
= 450*100/75.
= 45000/75.
CP = 600.
Now, we have to find SP.
The formula of SP is CP *1 + gain/100.
Here CP = 600.
Then,
= 600 * 1 + 25/100.
= 600 * 125/100.
= 75000/100.
= 750.
So, the man has to sell his article for rupees 750 to get the profit of 25%.