Number of MCQs: 50 20 50 100 150 200
Q.1 Find the roots of quadratic equation: x2 + x – 42 = 0?
Q.2 The average age of a husband and a wife is 23 years when they were married five years ago but now the average age of the husband, wife and child is 20 years(the child was born during the interval). What is the present age of the child?
Q.3 If 30% of a number exceeds 20% of it by 18, then find the number?
Q.4 5% people of a village in Sri Lanka died by bombardment, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning?
Q.5 1/3 of 2/6 of 1/7 of 2/28 of 2140 = ________?
Q.6 A can do (1/3) of a work in 5 days and B can do (2/5) of the work in 10 days. In how many days both A and B together can do the work ?
Q.7 5/8 * 2(2/5 – 5/4) / 1 1/4 = _________?
Q.8 P, Q and R have Rs.6000 among themselves. R has two-thirds of the total amount with P and Q. Find the amount with R?
Q.9 On decreasing the price of T.V. sets by 30 % its sale is increased by 20 %. What is the effect on the revenue received by the shopkeeper?
Q.10 A cube of side one meter length is cut into small cubes of side 10 cm each. How many such small cubes can be obtained?
Q.11 The slant height of a cone is 12 cm and radius of the base is 4cm, find the curved surface of the cone.
Q.12 After 38 liters of petrol were poured into the tank, it was still 5% empty. How much petrol must be poured into the tank in order to fill it?
Q.13 A cistern has a leak which would empty the cistern in 20 minutes. A tap is turned on which admits 4 liters a minute into the cistern, and it is emptied in 24 minutes. How many liters does the cistern hold?
Q.14 P can do a work in 24 days. Q can do the same work in 9 days and R can do the same in 12 days. Q and R start the work and leave after 3 days. P finishes the remaining work in_________days.
Q.15 Walking 6/7th of his usual speed, a man is 12 minutes too late. What is the usual time taken by him to cover that distance?
Q.16 33/4 of 4500 + ? = 118500
Q.17 The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is_________?
Q.18 From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is_________?
Q.19 A can run a kilometer race in 4 1/2 min while B can run same race in 5 min. How many meters start can A give B in a kilometer race, so that the race mat end in a dead heat?
Q.20 If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is__________?
Q.21 A and B can do a piece of work in 21 and 24 days respectively.They start the work together and after some days, A leaves and B completes the rest of the task in 9 days. After how many days did A leave?
Q.22 X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last ?
Q.23 The difference between simple interest and compound interest at the same rate for Rs.5000 for 2 years is Rs. 72. The rate of interest is?
Q.24 A wire in the form of a circle of radius 3.5 m is bent in the form of a rectangule, whose length and breadth are in the ratio of 6 : 5. What is the area of the rectangle?
Q.25 Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is -.
Q.26 The number of ways in which six boys and six girls can be seated in a row for a photograph so that no two girls sit together is_________?
Q.27 A wooden box of dimensions 8m x 7m x 6m is to carry rectangular boxes of dimensions 8cm x 7cm x 6cm. The maximum number of boxes that can be carried in 1 wooden box is?
Q.28 A invested some money in 10% stock at 96. If B wants to invest in an equality good 12% stock, he must purchase a stock worth of___________?
Q.29 32% of 425 – ?% of 250 = 36
Q.30 The length of a rectangular plot is increased by 25%. To keep it’s area uncharged the width of the plot should be___________?
Q.31 Which of the following has the most number of divisors?
Q.32 A committee has 5 men and 6 women. What are the number of ways of selecting a group of eight persons?
Q.33 A mixture of 150 liters of wine and water contains 20% water. How much more water should be added so that water becomes 25% of the new mixture?
Q.34 The wire bent in the form of a square enclose an area of 484 Sq.cm. If the same wire is bent so as to from a circle than the area enclosed will be_________?
Q.35 Find the least number which when divide by 2, 3, 4, 5 and 6 leaves 1, 2, 3, 4 and 5 as remainders respectively, but when divided by 7 leaves no remainder?
Q.36 The diameter of a cylindrical tin is 6cm and height is 5 cm. Find the volume of the cylinder?
Q.37 Two taps X and Y can fill a tank in 10 hrs. and 15 hrs.respectively. If the both taps are opened together, the tank will be full in_________?
Q.38 If 20 teachers out of a faculty of 80 are transferred, what percentage of the original faculty remains ?
Q.39 In a class of 140 students, 60% of them passed. By what percent is the number of students who passed more than the number of failed students?
Q.40 A can do a certain job in 12 days. B is 60% more efficient than A. The number of days it takes for B to do the same piece of work, is:_________?
Q.41 A man can row three-quarters of a kilometre against the stream in 11 minutes and down the stream in 7 minutes. The speed (in km/hr) of the man in still water is:_________?
Q.42 A can do a particular work in 6 days . B can do the same work in 8 days. A and B signed to do it for Rs. 3200. They completed the work in 3 days with the help of C. How much is to be paid to C?
Q.43 Two tests had the same maximum mark. The pass percentages in the first and the second test were 40% and 45% respectively. A candidate scored 216 marks in the second test and failed by 36 marks in that test. Find the pass mark in the first test?
Q.44 The probability that a number selected at random from the first 50 natural numbers is a composite number is__________?
Q.45 A room is 6 meters 24 centimeters in length and 4 meters 32 centimeters in width. Find the least number of square tiles of equal size required to cover the entire floor of the room?
Q.46 If the side of a square is increased by 30 %. Its area is increased by:_________?
Q.47 The spherical ball of lead 3 cm in diameter is melted and recast into 3 spherical balls. The diameters of two of these are 1 ½ cm and 2 cm respectively. The diameter of third ball is?
Q.48 Six points are marked on a straight line and five points are marked on another line which is parallel to the first line. How many straight lines, including the first two, can be formed with these points?
Q.49 What will be 80 Percent of a number whose 200 percent is 90?
Q.50 Find the length of the wire required to go 15 times round a square field containing 69696 m2.
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