Practise 100 Most Repeated MCQs of Math MCQs in Maths. Attempt multiple-choice questions, check answers and revise related subtopics.
Study 100 Most Repeated MCQs of Math through multiple-choice questions in Maths. This subtopic contains 1095 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
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Answer: 1200
Explanation ⇒ Let total examines is x. ⇒ 65% of total examines has passed. ⇒ student failed =100%−65%=35% Then, 35% of examines have failed. ⇒ Number of failures is 420 ∴ 35% of x=420 ∴ 35x/100 = 420 x=(420 * 100)/35 ∴ x=1200 Thus, Total number of examines are 1200.
Answer: 40
Explanation 4 Men and 6 Women take 8 days. So TOTAL WORK = 32 MD + 48 WD (where MD= Mandays, & WD = Womandays, a unit of work) …… (eqn1) 3 Men and 7 Women take 10 days. So, TOTAL WORK = 30 MD + 70 WD …. (eqn2) Equating the total work, 32 MD + 48 WD = 30 MD + 70 WD => 2 MD = 22 WD => 1 MD = 11 WD So, replacing man days in eqn2, TOTAL WORK = 400 WD Now, 10 women will complete 10 WD of work in one day. To complete 400 WD of work, Time needed = (400 WD)/(10 WD) = 40 Days
Answer: 1/2 of 1028
Explanation 1/2 of 1028 = 514 1/9 of 504 = 56 1/3 of 741 = 247 1/4 of 236 = 59
Answer: 41
Explanation 11 + 8 = 19 19 + 10 = 29 29 + 12 = 41 41 + 14 = 55.
Answer: Rs.22
Explanation step 2: Answer: 20 + 2 = 22 ***** ND04-12-2022
Answer: 10
Explanation A zoo has some lions and Parrots. A zoo has x lions and y parrots The supervisor counted 15 heads and 50 legs. How many lions are there? Heads x + y = 15 y = 15 – x x = 4 legs and y has 2 legs 4x + 2y = 50 4x + 2(15-x) = 50 4x + 30 – 2x = 50 2x = 20 X = 20/2 X = 10 So x means lions, so there 10 Lions CHECKING our answer*** 40 + 10 = 50 legs
Answer: 81
Explanation The other numbers in the list are all prime numbers, whereas 81 is a composite number (3^4).
Answer: 45
Explanation The formula to find the number of handshakes between n people is: Handshakes = 𝑛(𝑛−1)/2 Here, n = 10 10 × 9/2 = 45 So, 45 handshakes occurred before the meeting.
Answer: 1200
Explanation Let us consider that the actual cost of the article is "x". Since the decrease in price = 24 %= 0.24 x - 0.24 x = 912 0.76 x = 912 x = 912 / 0.76 x = 1200
Answer: 4400
Explanation Let total income = x Spend money = 3300 % money of total income used = 75% of X According to condition. 75% x X = 3300 X x 75/100 = 3300 75X = 330000 X = 330000/75 X = 4400
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