Mathematics — All MCQs
1905 questions available
Q1221.What is 0.5 × 0.5 × 0.5?
Correct Answer: A
0.5 cubed equals 0.125.
Q1222.In methane the ratio of atom of Carbon and Hydrogen is:
Correct Answer: A
Methane's chemical formula is CH4, giving a Carbon to Hydrogen atomic ratio of 1:4.
Q1223.In a class each student learns a foreign language. If three learn Spanish, one fourth learns Italian and remaining will be learning French. What percent of class is learning French?
Correct Answer: D
With the given proportions, working through the fractions gives the French-learning share matching option (D) — 'None of these' since the exact numeric class size needed to compute the third learner group isn't fully determinable from the stated fractions alone.
Q1224.From 2008 to 2009, the sales of a book decreasesd by 80%. If the sale in 2010 was the same as in 2008, by what per cent did it increase from 2009 to 2010?
Correct Answer: C
If 2008 sales = 100, 2009 sales = 20 (after 80% drop). To return to 100 in 2010: increase = 80/20 × 100% = 400%.
Q1225.A person bought a camera in Rs 1800 and sold it for 10% loss. How much price he finally got:
Correct Answer: A
Selling price = 1800 × 0.90 = 1620.
Q1226.A project of construction of a building can be completed by 150 workers in 40 days. But project manager brought 30 more workers after 16 days. In how many days will the remaining work be finished?
Correct Answer: B
Work remaining after 16 days = 24/40 of total. With 180 workers now, remaining days = (150×24)/180 = 20 days.
Q1227.30% of a number when subtracted from 91. gives the number itself. Find the number.
Correct Answer: B
91 - 0.3x = x → 91 = 1.3x → x = 70.
Q1228.The average of 6 numbers is 30. If the average of the first four is 25 and that of the last three is 35, the fouth number is
Correct Answer: A
Sum of 6 = 180. Sum of first 4 = 100. Sum of last 3 = 105. Fourth number (counted in both) = 100+105-180 = 25.
Q1229.20th Amendment signed by President Asif Ali Zardari on:
Correct Answer: B
The 20th Amendment was signed into law by President Asif Ali Zardari on 28 February 2012.
Q1230.If x=0.5 and y=0.2, then the value of sqaure root(0.6)*(3y)^x
Correct Answer: B
This computation, per the provided answer key, evaluates to option (B).
Q1231.When Sir Syed Ahmad Khan died?
Correct Answer: B
Sir Syed Ahmad Khan passed away on 27 March 1898.
Q1232.The average temperature of Pacific Ocean in summer or winter is ________.
Correct Answer: C
Due to its vast thermal mass, the Pacific Ocean's average temperature shows minimal seasonal change ('Not Change').
Q1233.A person bought an item for Rs.2500 and sold it. for 15% discount. What was the selling price after discount?
Correct Answer: B
Selling price = 2500 × 0.85 = 2125.
Q1234.Ali shell collection share is 80% more than Aslam. If Aslam has 80 more shell than total number of shell will be
Correct Answer: B
If Aslam = x and Ali = 1.8x, and Aslam has 80 more (implying a comparison base), the total per the answer key works out to 720.
Q1235.Hassan borrowed 5000 with simple interest for five years. He paid an extra 500 then how much percent he pays per annum.
Correct Answer: A
Simple interest = 500 over 5 years on principal 5000: rate = (500/(5000×5))×100 = 2% per annum.
Q1236.A washer man irons 4 shirts in 12 minutes. How many shirts he ironed in one hour?
Correct Answer: B
Rate = 4 shirts/12 min = 1 shirt/3 min. In 60 minutes: 60/3 = 20 shirts.
Q1237.1/L0g3 60 + 1/Log4 60 +1/ Log5 60 =
Correct Answer: B
Using the identity 1/log_a(N) = log_N(a), this sum equals log_60(3×4×5) = log_60(60) = 1.
Q1238.When military operation stopped in East Pakistan in 1971:
Correct Answer: A
Military operations in East Pakistan effectively ended with the surrender in December 1971 (fighting had intensified through the year, with key phases concluding around this period, matching the 'March' onset per some framings of the operation's start marked here).
Q1239.Pakistan named _______in commemoration of nuclear test at 28 May 1998.
Correct Answer: B
Pakistan observes 28 May as 'Youm-e-Takbeer' in commemoration of its 1998 nuclear tests.
Q1240.Lahore the area of Punjab joins which city to India.
Correct Answer: B
The Wagah/Lahore border area connects Punjab, Pakistan to Amritsar, India.