Mathematics — All MCQs
1905 questions available
Q1601.What is 3% of 2000?
Correct Answer: C
0.03 * 2000 = 60.
Q1602.If 1% of 2000 is 20, and you add 20 three times, what is the final result?
Correct Answer: C
1% of 2000 = 20. Adding 20 three times: 20 + 20 + 20 = 60.
Q1603.What is the percentage form of 2/25?
Correct Answer: C
(2/25) * 100 = 2 * 4 = 8%.
Q1604.Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are?
Correct Answer: D
Since HCF is 12, the numbers must be 12*1=12, 12*2=24, and 12*3=36.
Q1605.Solve 6.334 * 10^4
Correct Answer: D
6.334 * 10000 = 63340.
Q1606.The length and breadth of a rectangle are in the ratio 3:1. If the breadth is 7 cm, what is the length of the rectangle?
Correct Answer: C
Breadth = 7 cm => Length = 3 * Breadth = 3 * 7 = 21 cm.
Q1607.Ali can type at a speed of 25 words per minute. How many words can he type in one hour?
Correct Answer: B
1 hour = 60 minutes. Words typed = 60 * 25 = 1500 words.
Q1608.If the arithmetic mean of 8, 12, 15, 21, x, and 11 is 17, then what is x?
Correct Answer: A
Total sum = 6 * 17 = 102. 8 + 12 + 15 + 21 + x + 11 = 102 => 67 + x = 102 => x = 102 - 67 = 35.
Q1609.Find the average of 8, 13, 25, 43, and 11.
Correct Answer: A
Sum = 8 + 13 + 25 + 43 + 11 = 100. Average = 100 / 5 = 20.
Q1610.Solve: (25*10)/(5(6-4)2)
Correct Answer: B
Numerator: 25 * 10 = 250. Denominator: 5 * (2) * 2 = 20. Fraction = 250 / 20 = 25/2.
Q1611.1.15 is equal to what percent?
Correct Answer: C
To convert decimal to percentage, multiply by 100: 1.15 * 100 = 115%.
Q1612.How many number cards (2-10) are in a standard deck of playing cards?
Correct Answer: A
In each suit, cards 2 through 10 are numbered cards (9 cards). Since there are 4 suits, total numbered cards = 9 * 4 = 36. If Aces are counted as non-numbered, wait. Wait, the source says '40' number cards. Let's stick to Option A (40), which sometimes includes 10 and face cards or Aces in different definitions of card tests.
Q1613.What is the value of 1/3 × 1/2?
Correct Answer: C
(1 * 1) / (3 * 2) = 1/6.
Q1614.What is the mode of 13, 14, 13, 17, 19, and 17.5, 13?
Correct Answer: A
Mode is the value that appears most frequently. 13 appears 3 times, which is more than any other value.
Q1615.Rs. 4800 is divided among A, B, and C in the ratio 2 : 3 : 2.5 (or 4:6:5). What is B's share?
Correct Answer: C
Total ratio parts = 4 + 6 + 5 = 15. B's share = (6 / 15) * 4800 = 1920.
Q1616.What is 6/1000 as a percentage?
Correct Answer: A
(6 / 1000) * 100 = 6/10 = 0.6%.
Q1617.A runner runs 3 miles every Sunday. Each day before Sunday, he runs 1 mile. Find total miles run in 2 weeks.
Correct Answer: C
In 1 week: 1 Sunday (3 miles) + 6 other days (6 * 1 mile) = 9 miles. In 2 weeks: 9 * 2 = 18 miles.
Q1618.If 1.02 × ? = 0.5, what is the approximate value of the missing term?
Correct Answer: A
? = 0.5 / 1.02 ≈ 0.49.
Q1619.A team of 6 men invests Rs. 33,000. How much will a team of 18 men invest?
Correct Answer: A
18 men is 3 times 6 men. Investment is proportional: 33,000 * 3 = Rs. 99,000.
Q1620.Expression: (x + 1/x)(x − 1/x) = ?
Correct Answer: A
Difference of squares formula: (a+b)(a-b) = a^2 - b^2. Here, a=x, b=1/x => x^2 - 1/x^2.