In any sequence of n nonzero numbers, a pair of consecutive terms with opposite signs represents a sign change. For example, the sequence –2, 3, –4, 5 has three sign changes. Does the sequence of nonzero numbers s1, s2, s3, . . ., sn have an even number of sign changes? – OG 2020 Question #312 with Solution

A 2 minute read

OG 2020: Question No. 312 In any sequence of n nonzero numbers, a pair of consecutive terms with opposite signs represents a sign change. For example, the sequence –2, 3, –4, 5 has three sign changes. Does the sequence of nonzero numbers s1, s2, s3, . . ., sn have an even number of sign

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gmat probability questions gmat quant

GMAT Probability | 3 deadly mistakes to avoid | GMAT Quant

A 12 minute read

When it comes to GMAT Quant, Probability is like the ‘iceberg’ with which the Titanic collided, and the ‘so-called’ unsinkable ship, sunk. Falling in GMAT Probability pitfalls can be hazardous to your GMAT score. Although, probability is a simple concept, yet its application in GMAT ends up hitting your score. That is why we have

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In the floor plan of an executive’s beach house above, the north and south walls of the living room are parallel. What is the floor area, in square feet, of the bedroom? – OG 2020 Question #99 with Solution

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OG 2020: Question No. 99 In the floor plan of an executive’s beach house above, the north and south walls of the living room are parallel. What is the floor area, in square feet, of the bedroom? 450√3 450 225√3 225 It cannot be determined from the information given. Source OG 2020 Type Problem Solving

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In the figure above, the vertices of ΔOPQ and ΔQRS have coordinates as indicated. Do ΔOPQ and ΔQRS have equal areas? – OG 2020 Question #325 with Solution

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OG 2020: Question No. 325 In the figure above, the vertices of ΔOPQ and ΔQRS have coordinates as indicated. Do ΔOPQ and ΔQRS have equal areas? b = 2a d = 2c Source OG 2020 Type Data Sufficiency Topic Geometry Sub-Topic Triangles / Coordinate Geometry Difficulty Medium Solution Steps 1 & 2: Understand Question and

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Properties of Circle & Circle Formula

Properties of Circle | Circle Formulas – Area and Perimeter

A 7 minute read

A circle is a closed shape formed by tracing a point that moves in a plane such that its distance from a given point is constant. The word circle is derived from the Greek word kirkos, meaning hoop or ring. in this article, we cover the important terms related to circles, their properties, and various

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In the figure above, is the area of triangular region ADE equal to the area of rectangular region ABCD? – OGQR 2020 Question #206 with Solution

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OGQR 2020: Question No. 206 In the figure above, is the area of the triangular region ADE equal to the area of rectangular region ABCD? x = 10 and y = 5. x = 2y Source OGQR 2020 Type Data Sufficiency Topic Geometry Sub-Topic Triangle/Polygons Difficulty Medium Solution Steps 1 & 2: Understand Question and Draw Inferences We are given

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If rectangle ABCD is inscribed in the circle above, what is the area of the circular region? – OG 2020 Question #96 with Solution

A 2 minute read

OG 2020: Question No. 96 If rectangle ABCD is inscribed in the circle above, what is the area of the circular region? 36.00π 42.25π 64.00π 84.50π 169.00π Source OG 2020 Type Problem Solving Topic Geometry Sub-Topic Circle/Triangle Difficulty Medium Solution Given In this question, we are given Rectangle ABCD is inscribed in the circle, as

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On a scale drawing, a rectangle 1 inch by 1(1/3) inches represents the floor of a room and the indicated scale is 1-inch equals 15 feet. How many square tiles 6 inches on a side will be needed to cover this floor? (1 foot = 12 inches) – OG 2020 Question #100 with Solution

A < 1 minute read

OG 2020: Question No. 100 On a scale drawing, a rectangle 1 inch by 1(1/3) inches represents the floor of a room and the indicated scale is 1-inch equals 15 feet. How many square tiles 6 inches on a side will be needed to cover this floor? (1 foot = 12 inches) 40 70 120

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