Answer: C) 2:3 Explanation: Let p be the principle amount And R% be the rate of interest Then, required ratio =P×4×R100P×6×R100    ⇒4PR6PR= 2:3

Answer: A) Nov 21 Explanation:

Answer: A) sand and silicates Explanation: A glass is made of liquid sand. You can make glass by heating ordinary sand and made into a liquid and mix with silicates to form a glass.

Answer: D) Nani Palkhivala Explanation:

Answer: C) The Civil Rights movement Explanation: The Civil Rights Movement :   The Civil Rights Movement in the United States was a struggle by black Americans to gain full citizenship rights and achieve racial equality. Individuals and organizations challenged discrimination with a variety of activities, including protest marches, boycotts, and refusal to abide by segregation laws. Many believe that the movement began with the bus boycott in Montgomery, Alabama, in 1955 and ended with the Voting Rights Act of 1965.

Answer: C) A genetic disorder with symptoms of pre-mature aging Explanation: Progeria is a rare genetic disordr which involves symptoms resembloing aspects of aging, manifested at a very early age.The term is often used in reference to Hutchinson - gilford progeria syndrome(HGPS).

9 P in SS  is a short form for 9 Planets i  Solar System.   There are many more of this kind. Some of them are:   1. 7 C in a R        -    7 Colours in a Rainbow 2.  90 D in a R A   -    90 Degrees in a Right Angle 3.  52 W in a Y     -    52 Weeks in a Year 4.  5 C in an OF 5.  12 S of the Z

Answer: B) 117 Explanation: Length = 6 m 24 cm = 624 cmWidth = 4 m 32 cm = 432 cmHCF of 624 and 432 = 48Number of square tiles required = (624 x 432)/(48 x 48) = 13 x 9 = 117.