Solution: tan 50 = tan (40+10) We know tan (a+b) = (tan + tan b)/(1-tan tan b) tan 50 = (tan 40 + tan 10)/(1-tan 40 tan 10) Cross multiply... View Article
Answer: CSA - curved surface area TSA - Total surface area Let a be the edge of a cube. Then volume of cube, V = a3. So we can write edge, a... View Article
(a) True (b) False Solution: Minorities in the Indian context means minority religions. OBC is not in minority. Hence option b is the answer.... View Article
Solution: The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. Here number of terms = 10. So median is the mean of (n/2)th term... View Article
Answer: A sequence of numbers that has a common difference between any two consecutive numbers is called an arithmetic progression (A.P.) The... View Article
(a) River water (b) Rain water (c) Potable water (d) Ground water Answer: Water fit for drinking is called potable water. Potable refers to... View Article
Solution: Given number is 961. Place a bar over every pair of digits starting from the digit at one’s place. If the number of digits in it is... View Article
(a) electric energy (b) chemical energy (c) light energy (d) None of these Solution: A solar cell converts solar energy into electrical... View Article