Payal Tandon
A 2 min read PQID: DS57502.01 | 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 ā2, 3, ā4, 5 has three sign...
Read MoreA < 1 min read OG 2020: Question No. 297 If a and b are integers, and b > 0, does a-1 /b+1 = a/b? a = b ā 4 a = āb Source OG 2020 Type Data Sufficiency Topic Algebra Sub-Topic Linear Equations Difficulty Easy –...
Read MoreA < 1 min read OG 2020: Question No. 373 Is x = y? 2x/3 – y/3 = 1/3 x/ 4 – y/4 = 0 Source OG 2020 Type Data Sufficiency Topic Algebra Sub-Topic Simple Algebric Expression Difficulty Easy – Medium Solution...
Read MoreA 2 min read OG 2020: Question No. 346 A paint mixture was formed by mixing exactly 3 colors of paint. By volume, the mixture was x% blue paint, y% green paint, and z% red paint. If exactly 1 gallon of blue paint and 3 gallons...
Read MoreA 2 min read OG 2020: Question No. 323 A company produces a certain toy in only 2 sizes, small or large, and in only 2 colors, red or green. If, for each size, there are equal numbers of red and green toys in a certain...
Read MoreA 2 min read OG 2020: Question No. 320 Is the average (arithmetic mean) of the numbers x, y, and z greater than z? z ā x < y ā z x < z < y Source OG 2020 Type Data Sufficiency Topic Algebra, Number Properties Sub-Topic...
Read MoreA 2 min read OG 2020: Question No. 319 A certain painting job requires a mixture of yellow, green, and white paint. If 12 quarts of paint are needed for the job, how many quarts of green paint are needed? The ratio of the amount...
Read MoreA 2 min read PQID = DS49502.01 | OG 2020: Question No. 318 If x is an integer greater than 0, what is the remainder when x is divided by 4? The remainder is 3 when x + 1 is divided by 4.The remainder is 0 when 2x is divided by...
Read MoreA 2 min read OG 2020: Question No. 313 Jack picked 76 apples. Of these, he sold 4y apples to Juanita and 3t apples to Sylvia. If he kept the remaining apples, how many apples did he keep? (t and y are positive integers.) y ā„ 15...
Read MoreA 2 min read PQID – DS28502.01 | OG 2020: Question No. 317 If each side of parallelogram P has length 1, what is the area of P? One angle of P measures 45 degrees.The altitude of P is ā2/2. SourceOG...
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