If 24√3×3+2√2y3=(2√3x+√2y)(Ax2+Bxy+cy2) then (2A+√6B-C) is equal to
If 24√3×3+2√2y3=(2√3x+√2y)(Ax2+Bxy+cy2) then (2A+√6B-C) is equal to? a) 10 b) 14 c) 6 d) 8 Sol:
If 24√3×3+2√2y3=(2√3x+√2y)(Ax2+Bxy+cy2) then (2A+√6B-C) is equal to Read More »
quantitative aptitude
Study the pie chart and answer the follows questions
Study the pie chart and answer the follows questions. Break-up (degree-wise) of the number of students in five students in five school (A,B,C,D and E) in a city total number of students =5800 The number of students in school C is what percentage more than the number of students in school B? a) 7.2% b)
Study the pie chart and answer the follows questions Read More »
The figure shows square U & square V inside square QRST. The area of square U is 49 cm²
The figure shows square U & square V inside square QRST. The area of square U is 49 cm². i f the area of square V is 169 cm². find perimeter of shaded part. a) 40 b) 60 c) 53 d) 66 Sol: Side length of square U = 7 Side length of square V
The figure shows square U & square V inside square QRST. The area of square U is 49 cm² Read More »
What is the HCF of 4/5, 5/6, 6/19?
What is the HCF of 4/5, 5/6, 6/19? a) 1/380 b) 2/570 c) 1/570 d) None of these Sol:
The probability that a man will live 10 more years is ¼ and the probability that his wife will l ive 10 more years is 1/3
The probability that a man will live 10 more years is ¼ and the probability that his wife will l ive 10 more years is 1/3. The probability that neither of them will be alive in 10 years is? a) 5/12 b) 1/2 c) 7/12 d) 11/12 Sol:
How many natural numbers up to 2001 are divisible by 3,4 but not by 5
How many natural numbers up to 2001 are divisible by 3,4 but not by 5? a) 768 b) 801 c) 934 d) 1067 Sol: Divisible by 3 till 2001 = 667 Divisible by 4 till 2001 = 500 Divisible by 12 till 2001 = 166 ⇒ Divisible by 3, 4 = 667 + 500 –
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How many pairs of positive integers(of m,n) satisfy the equation m² + 105 = n²
How many pairs of positive integers(of m,n) satisfy the equation m² + 105 = n² a) 2 b) 3 c) 4 d) 5 Sol: m² – n² = 105 (m – n) (n + m) = 105 105 = 3 × 35 ⇒ m = 19, n = 16 105 = 5 × 21 ⇒
How many pairs of positive integers(of m,n) satisfy the equation m² + 105 = n² Read More »
The value of the expression (cos⁶θ + sin⁶θ – 1)(tan²θ + cot²θ + 2) is
The value of the expression (cos⁶θ + sin⁶θ – 1)(tan²θ + cot²θ + 2) is: (a) 0 (b) -1 (c) -3 (d) 1 Sol:
The value of the expression (cos⁶θ + sin⁶θ – 1)(tan²θ + cot²θ + 2) is Read More »
If a³ + b³ = 110 and a + b = 5, then (a + b)² – 3ab is equal to
If a³ + b³ = 110 and a + b = 5, then (a + b)² – 3ab is equal to: a) 52 b) 32 c) 42 d) 22 Sol: a + b = 5 a³ + b³ = 110 ⇒ (a + b) (a² + b² – ab) = 110 a² + b² –
If a³ + b³ = 110 and a + b = 5, then (a + b)² – 3ab is equal to Read More »
The base of a prism is in the shape of an equilateral triangle. If the perimeter of the base is 18.45 cm and the height
The base of a prism is in the shape of an equilateral triangle. If the perimeter of the base is 18.45 cm and the height of the prism is 32 cm, then what is the volume (in cm³) of the prism? a) 180√3 b) 324.8√3 c) 434 d) 524 Sol: Perimeter = 18.45 cm Side