Solution: Let n(H) be the number of people speaking Hindi and n(E) be the number of people speaking English. n(H)... View Article
Solution: Total number of boys and girls = 35+20 = 55 Total average weight of class=38 kg Total weight of... View Article
Solution: Given a + b + √3c = 0 a + b = -√3c Squaring both sides |a|2+|b|2+2|a||b| cos θ... View Article
Solution: Given p(x) = (a2+9)x2 +45x + 6a Let k and 1/k be the zeros of the polynomial. Product of... View Article
Solution: ABE is a right angled triangle. (AE)2 = (AB)2 + (BE)2…(i) DBC is a right angled triangle. (DC)2 =... View Article
(a) A⋂(B-C) = (A⋂B) – (A⋂C) (b) A- (B⋂C) = (A – B) ∪ (A – C) Solution: Given A... View Article
Solution: Given line is 3x+4y = 24 Converting to intercept form, (3x/24) + (4y/24) = 1 => (x/8) + (y/6)... View Article
Solution: Given that we have a point C on AB such that AC = BC. Add AC on both sides... View Article
(a) Rs. 380 (b) Rs. 61 (c) Rs. 95 (d) Rs. 80 Solution: Let x be the amount with the... View Article
(a) 6 (b) 2 (c) 3 (d) 8 Solution: The degree of a monomial is the sum of the exponents... View Article
(A) 29 (B) 210 (C) 211 (D) 28 Solution: Let m = Number of times a number n is... View Article
(a) 1/x2 + 1/y2 = 1/p2 (b) 1/x2 + 1/y2 = 1/2p2 (c) 1/x2 + 1/y2 = 4/p2 (d) none... View Article
(a) 3 (b) 4 (c) 5 (d) 6 Solution: Let F denote the number of people who read French and... View Article
Solution: From the venn diagram a+e+g+d = 40 ..(i) b+e+g+f = 50 ..(ii) c+d+g+f = 60 ..(iii) g = 10... View Article
(a) 84 (b) 168 (c) 188 (d) 208 Solution: For the number to be divisible by 5, the digit at... View Article
(a) All isosceles triangles are similar. (b) All equilateral triangles are similar. (c) All circles are similar. (d) None of... View Article
Solution: The cost price of 10 fans = 1250×10 = Rs.12500 The selling price of 6 fans = 6×1375 =... View Article
Solution: Price of petrol = Rs. 65 4% of 65 = (4/100)×65 = 2.6 Increased price = 65+2.6 = 67.6... View Article
Solution: Equation of unit circle with centre at origin is x2+y2 = 1. Given line, L: 2x+y = 4 Let... View Article
a) 240 N/m2 b) 24 N/m2 c) 0.06 N/m2 d) 60 N/m2 Answer: b) 24 N/m2 Solution: Given : S= 0.072 N/m Diameter of water... View Article
