Start learning 50% faster. Sign in now
ATQ, Quantity I: Let the speeds of boats P and Q in still water are ‘19x’ m/s and ‘15x’ m/s respectively. Also let the speed of the stream is ‘y’ m/s. So, 19x+y= 540/45 19x + y = 12 ---------- (1) And 15x-y= 240/48 15x – y = 5 ---------- (2) From equations (1) and (2): x = 0.5, y = 2.5 Since, the upstream speed of boat P = 19 × 0.5 – 2.5 = 7 m/s So, the time, in which boat P can cover 224 m upstream = 224/7 = 32 seconds Quantity II: Let the initial quantity of water = ‘x’ L So, the initial quantity of juice = (x + 6) L Let the cost of pure juice is Rs.’5y’ per L and the initial cost of the mixture is Rs.‘3y’ per L. So, ((x+6)×5y)/(2x+6)=3y 5x + 30 = 6x + 18 x = 12 The initial quantity of water = 12 L The initial quantity of water = 12 L The initial quantity of juice = 12 + 6 = 18 L After replacing 5 L quantity of the mixture with the same quantity of juice: The new quantity of juice = 18 – 3 + 5 = 20 L The new quantity of water = 12 – 2 = 10 L Since, we don’t know the cost of the pure juice. So, the cost of new mixture can’t be determined. Hence, relation can’t be established
Back hurt and hollow heart in potato occur due to
Current location of IRRI is ____
Which of the following bring ease in adoption of zero till system?
Pineapple variety that has got Geographical Indication Status is __
Which type of antennae has the appearance of comb-like structure and longer on one side?
The term “Canola” refers to oil from B. napus and B. campestris containing
In functional foods,probiotics are
Which of the following statement(s) is/are correct for Pradhan Mantri Kisan Maan Dhan Yojana (PM-KMY)?
1. It is a voluntary and contributory pens...
Which is a system of supervised control of diseases and pests in winter wheat?
Tensiometer was first Used for scheduling irrigation by