Machine A can produce 7500 biscuits in a day, which is 240 fewer biscuits than what machine B can produce in a day. Now, 20 biscuits are placed in a pack. If both machines A and B are used, how many packs of biscuits will be there after 7 days?
The ratio of the volume of water in Bottle P to the volume of water in Bottle Q is 3 : 4. Rajeev drank 40 mL of the water from Bottle P and the ratio then became 13 : 20. How much water was there in bottle P at first?
(a) 60 mL
(b) 80 mL
(c) 300 mL
(d) 400 mL
Which of the following is the correct mirror image of Fig. (X), if mirror is placed along MN?