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?
Select the option which will replace the (?) in the given number series.
5, 17, 37, 65, (?), 145
Which of the following figures has the greatest perimeter?
DCan't be determined