GRE Practice Question and Answer
8Q: When all the students in a school are made to stand in rows of 54, 30 such rows are formed. If the students are made to stand in rows of 45, how many such rows will be formed ? 1140 05b5cc736e4d2b4197774f88d
5b5cc736e4d2b4197774f88d- 122false
- 236true
- 332false
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Answer : 2. "36"
Explanation :
Answer: B) 36 Explanation: Total number of students = 54 x 30When arranged in rows of 45, number of rows formed are, 54x3045 = 36.
Q: A farmer divides his herd of k cows among his 4 sons, so that one son gets one half of the herd, the second gets one-fourth, the third gets one-fifth and the fourth gets 9 cows. Then k is equal to ? 1140 05b5cc73de4d2b4197774f92a
5b5cc73de4d2b4197774f92a- 1160false
- 2120false
- 3140false
- 4180true
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Answer : 4. "180"
Explanation :
Answer: D) 180 Explanation: Given total number of cows = kNow, 1st son share = k/22nd son share = k/43rd son share = k/54th son share = 9 (k) + (k/4) + (k/5) + 9 = k=> k - (19k/20) = 9=> (20k-19k)/20 = 9=> k = 180.
Q: A jeep travels a certain distance taking 6 hrs in forward journey, during the return journey increased speed 12km/hr takes the times 4 hrs. What is the distance travelled by the jeep is ? 1139 05b5cc754e4d2b4197774fb5d
5b5cc754e4d2b4197774fb5d- 1244 kmfalse
- 2144 kmtrue
- 3444 kmfalse
- 4344 kmfalse
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Answer : 2. "144 km"
Explanation :
Answer: B) 144 km Explanation: Given a jeep travels a certain distance taking 6 hrs in forward journeyDuring the return journey, it takes 4 hrs with an increased speed 12 km/hrLet 'x' be the distance.Now, speed is given by distance/time.Here the difference between both speeds = 12 x4 - x6 = 12 3x - 2x12 = 12 => x = 144 km Therefore, the distance travelled by the jeep in forward or return journey is x = 144 km.
Q: How many spaces are required between punctuation? 1137 05b5cc626e4d2b4197774b87c
5b5cc626e4d2b4197774b87c- 11true
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Answer : 1. "1"
Explanation :
Answer: A) 1 Explanation: While using punctuations, only one space is used.
Q: 6 divided by 2(1 + 2) = 1137 05b5cc65ee4d2b4197774be4f
5b5cc65ee4d2b4197774be4f- 11false
- 20false
- 39true
- 4Can't be determinedfalse
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Answer : 3. "9"
Explanation :
Answer: C) 9 Explanation: The given expression can be simplified as 6 ÷ 2 (1 + 2) The expression can be simplified further by the order of operations, using BODMAS rule. First evaluate Parentheses/Brackets, then evaluate Exponents/Orders, then evaluate Multiplication-Division, and finally evaluate Addition-Subtraction. Now, the expression becomes 6 ÷ 2 (3) According to the order of operations, division and multiplication have the same precedence, so the correct order is to evaluate from left to right. First take 6 and divide it by 2, and then multiply by 3. 6 ÷ 2 × 3 = 3 × 3 = 9 But not 6÷2×3 = 6 ÷ 6 = 1 Hence, 6 ÷ 2 (1 + 2) = 9.
Q: The cost price of 40 Magazines is the same as the selling price of 'P' articles. If the profit is 25%, then the value of 'P' is: 1137 05b5cc76ae4d2b4197774fe4f
5b5cc76ae4d2b4197774fe4f- 132true
- 240false
- 316false
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Answer : 1. "32"
Explanation :
Answer: A) 32 Explanation: Let C.P. of each Magazine be Rs. 1 C.P. of P articles = Rs. P. S.P. of P articles = Rs. 40. Profit = Rs. (40 - P) Now, Gain% = ProfitC.P×100 = 40-PP×100 Here 40-PP×100= 25 -->P = 32.
Q: 18 as a decimal? 1135 05b5cc6b0e4d2b4197774d2e5
5b5cc6b0e4d2b4197774d2e5- 10.375false
- 20.247false
- 30.214false
- 40.125true
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Answer : 4. "0.125"
Explanation :
Answer: D) 0.125 Explanation: Here 18 in decimal means 8th part in 1. We know that 110 = 0.1 Then, 18 = ? => ? = 18 x 0.1110= 0.1 x 108= 0.5418= 0.125
Q: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ? 1132 05b5cc764e4d2b4197774fd7b
5b5cc764e4d2b4197774fd7b- 12/3false
- 21/2true
- 37/8false
- 44/5false
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Answer : 2. "1/2"
Explanation :
Answer: B) 1/2 Explanation: Multiples of 3 below 20 are 3, 6, 9, 12, 15, 18 Multiples of 5 below 20 are 5, 10, 15, 20 Required number of possibilities = 10Total number of possibilities = 20Required probability = 10/20 = 1/2.