Q.
Equal masses of three liquids A, Band C have temperatures 10°C, 25°C and 40°C respectively.. If A and B are mixed, the mixture has a temperature of 15°C. If B and C are mixed, the mixture has a temperature of 30°C. If A and Care mixed, the mixture will have a temperature of:
see full answer
Want to Fund your own JEE / NEET / Foundation preparation ??
Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*
An Intiative by Sri Chaitanya
a
29°C
b
25°C
c
20°C
d
16°C
answer is D.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
If A and B are mixedm×sA×(15-10)=m×sB×(25-15)⇒sA=2sBIf B and C are mixedm×sB×(30-25)=m×sC×(40-30)⇒sC=12sBIf A and C are mixedm×(2sB)×(θ-10)=m×(12sB)×(40-θ) ⇒ θ=16oC
Watch 3-min video & get full concept clarity