Question
Quantity I – In how many ways letters of MOBILE
can be arranged when vowels are always together. Quantity II – In how many ways letters of MONDAY can be arranged when vowels are not together. In each of the following questions, read the following questions, read the given statements and compare given two quantities on its basis:Solution
Quantity I: Required no. of ways = 3! × 4! = 6 × 24 = 144 Quantity II. Total no. of ways = 6! = 6 × 5 × 4 × 3 × 2 × 1 = 720 No. of ways when vowels are always together = 2! × 5! = 2 × 120 = 240 No. of ways when vowels are not together = 720 – 240 = 480 ∴ Quantity I < Quantity II.
What is the acceleration of an object if it starts from rest and reaches a speed of 20 m/s in 5 seconds?
The final image in a simple microscope is –
While cooking, if the bottom of the vessel is getting blackened on the outside, it means thatÂ
The kidneys in human beings are a part of the system for
Which of the following hormones requires a cell surface receptor for its action?
A liquid rises in a capillary tube due to:
Is Ohm’s law universally applicable for all conducting elements?
The Doppler Effect occurs in:
A thin converging lens of focal length 20 cm is placed at the origin. An object is placed at x = –30 cm. A plane mirror is placed at x = +40 cm. The ...
A body is said to be in equilibrium when: