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Tag Archives: QA – Placement Quizzes-Algebra

A total of 324 coins of 20 paise and 25 paise make a sum of Rs 71. The number of 25-paise coins is: (A) 104… Read More
A zoo has some peacocks and some horses. If the number of heads be 48 and the number of feet be 140, then the number… Read More
Find the value of (1-1/3)(1-1/4)(1-1/5)…(1-1/100). (A) 1/10 (B) 1/50 (C) 1/20 (D) 1/100 Answer: (B) Explanation: We have (1-1/3)(1-1/4)(1-1/5)…(1-1/100) = (2/3)(3/4)(4/5)…(99/100) = 2/100 = 1/50.Quiz… Read More
If 2x/(1 + 1/(1 + x/(1 – x))) = 1, then find the value of x. (A) 1/3 (B) 2/3 (C) 1/2 (D) 3/2 Answer:… Read More
4/15 of 5/7 of a number is greater than 4/9 of 2/5 of the same number by 8. What is half of that number? (A)… Read More
then y is equal to, (A) 9/4 (B) 7/4 (C) 1/4 (D) 5/4 Answer: (A) Explanation: Now equating power on both side, or orQuiz of… Read More
If x1/3 + y1/3 – z1/3 = 0 then value of (x + y – z)3 + 27xyz is (A) 8 (B) 2 (C) 0… Read More
For any real number x the maximum value of 4−6x−x2 is at x=, (A) 4 (B) 6 (C) -3 (D) 3 Answer: (C) Explanation: Differentiate and equate to 0… Read More
If x3 + y3 = 9 and x + y = 3, then the value of x4+y4 is, (A) 21 (B) 0 (C) 17 (D) 25 Answer: (C) Explanation:… Read More