Question
P, Q, and R can complete a work in 12 days. 15 days and
30 days, respectively, working alone. How soon can the work be completed if P is assisted by Q and R on alternate days?ÂSolution
Total work = 60 (LCM of 12, 15 and 30) P's efficiency = 60/12 = 5 Q's efficiency = 60/15 = 4 R's efficiency = 60/30 = 2 Pattern of work = PQ, PR, PQ, PR... Work done by PQ and PR in 2 days = (5 + 4) + (5 + 2) = 16 2 days => 16 units 2 × 3 = 6 days => 16 × 3 = 48 units remaining in 12 units done by PQ in = work/efficiency = 9/ (5 + 4) = 1 days Total time taken = 6 + 1 = 7 days Now remaining 3unit work done by PR = 3/5+2=3/7day 7+3/7 =52/7days.
Main composition of synthetic milk is
Which of the following is an example of enzyme coagulated milk product?
a.   Paneer
b.   Dahl
c.   Cheese
<...Which of the following statements is/are correct?
a.      Better the medium for growth for the microorganisms, more heat resistant are t...
The limiting amino acid in green vegetables is:
The common forms of DNA technology include
Tomato fruits for canning are harvested at:
Emission of ethylene during transportation of cut flowers causes a disorder called:
The repeated washing of fruits and vegetables might remove
Which of the following enzymes is/are used for tenderizing meat
a)Â Â Â Bromaline
b)Â Â Â Ficin
c)Â Â Â Trypsin
...
Fats are solid at room temp. due to the presence of ……Fatty acids
