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Simplification - Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Simplification. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Answer : D
Explanation
let 2567 / 17 * 3 = x + 180 . Then, 2567 * 1/17 * 3 = x + 180 ⇒ x = (151 * 3 ) - 180 = (453 - 180) = 273
Answer : D
Explanation
given exp. = (11/4) / (8/3) / (13/12) = 11/4 *3/8 *12/13 = 99/104
Answer : B
Explanation
given exp= (1000-4/ 999)*999 = (999000-4 )= 998996
Answer : D
Explanation
given exp. = [8/7- 2/3+ (2/50/(24/25)]/[1- 1/7 {1/3+ (2/5)/(3/5)}] = [8/7 -2/3 +(2/5*25/24)]/[1-1/7 {1/3+2/3}]
= [8/7- 2/3+5/12]/[1-1/7*1]= [(96-56+35)/84]/[6/7] =(75/84*7/6) = 25/24
Answer : C
Explanation
given exp. = (3/2) / 1+ 1(/5/4) = (3/2)/ (1+4/5) = (3/2) /(9/5) = ( 3/2 * 5/9) = 5/6
Q 6 - 1/ (1*2) + 1/ (2*3) + 1/ (3*4) +??+ 1/ (100* 101 ) = ?
Answer : B
Explanation
given exp. = (1-1/2 )+ (1/2 -1/3)+ (1/3 -1/4)+???.+(1/100- 1/101) = (1- 1/100) = 100/101
Answer : B
Explanation
a/b = 3/4 ⇒ 3b = 4a ⇒ b = 4a / 3. ∴ 8a + 5b = 22 =.> 8a+ 5* 4a/3 =22 ⇒ 24a+20a =66 ⇒ 44a= 66 ⇒ a = 3/2
Answer : C
Explanation
on solving 2a+b =5 and 3a-4b =2 , we get a =2, b=1 ∴ ab = (2*1) = 2
Q 9 - if a +b+c = 11 and ab+ bc + ca = 20 , then what should be the value of (a3+b3+c3-3abc) = ?
Answer : C
Explanation
(a3+b3+c3- 3abc) = (a+b+c) (a2+b2+c2-ab- bc-ca) = (a+b+c)[ (a+b+c)2 - 3(ab+bc+ca)] = [ 11* (11) -3*20] = 11* (121-60) = 11*61 = 671
Q 10 - If in a examination condition of marks is that for the right answer student gets 3 marks but reduce 2 marks for every wrong answer . if 30 questions attempted and 40 marks gets by the student. Find out the number of question correctly done by the student.
Answer : B
Explanation
Let correctly attempted questions be x. Then , 3x-2 (30-x) = 40 ⇒ 5x = 100 ⇒ x = 20. Hence, 20 question correctly done by the student.