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In each of the following numberseries a wrong numberis given. Find out the wrong number.
1 3 6 11 20 39 70
50 51 47 56 42 65 29
What is the sum ofall even numbers from 1 — 40 ?
Which of the following numbersis exactly divisible by 99 ?
A number when divided by 357 leaves a reminder 39. By dividing the same numberby 17, the reminder obtainedis :
The least number which whendivided by 15, 27, 35 and 42 leavesin each case a remainder7,is:
The sum of squares of two numbersis 80 and the square of their difference is 36. The product of the two numbersis:
Which fraction is equal to 0.20 % ?
Find the missing term in the following sequence:
4, 9, 19, --, 79
In an examination, a student scores 4 marks for every correct answer and loses one mark for every wrong answer. A student attempts all the hundred questions and scores 210 marks. The number of questions he answered correctly was:
If Rs. 900 amounts to Rs. 1,080 in 4 years at simple interest, what sum will amount to Rs.1,275 in 5 years at the same rate?
A sum of money at compoundinterest amountsto thrice itself in 3 years. In how manyyears will it be 9 times itself?
Of the following fractions, whichis less than $$\frac{2}{3}$$?
The difference between the compoundinterest and the simple interest on a certain sum at 5% per annum for 2 years is Rs.1.50, the sum is :
A can do a piece of work in 25 days and B canfinish it in 20 days. They work together for 5 days and then A goes away. In how many days will they_ finish the work?
A can do a piece of workin 40 days. He workedat it for 5 days and B finished the remaining work in 21 days. In how many days can A and B together finish the work?
Arvind purchased a wrist watch with 30 percent discounton the labelled price. He sold it with 40 percent profit on the price he bought. What was his percent loss on the labelled price?
An amount of moneyis to be distributed among P,Q and in the ratio of 7:3:11. If the total share of P and Q together is Rs.15000, what is the difference between P and R’s share?
$$\frac{2}{3}$$ of a consignment was sold for a profit of 6% and the rest at a loss of 3%. If the sale has an overall profit of Rs.540/, then the value of the consignment will be
$$\frac{1}{4}$$ of a number substracted from $$\frac{1}{3}$$ of a number gives 12. Then the numberis
Jayesh earns 60% more moneythan Kabir. Kabir earns 20% less than Akash. If Kabir’s income is Rs. 5000 by what percent is Jayesh’s earning more than Akash?
Varun purchaseda steel wire. He cut 16 pieces of 2.5metres, 12 pieces of 1.5 metres and 20 pieces of 0.5 metres. Instead if he had cut pieces of 1.7 metres only, how manypieces could have been made?
Three-fifty of two third of one-fourth of a numberis 40 more than one-sixth of 660. Whatis 50 percent of that number?
75% of a number when added to 75 becomes the numberitself. The number is:
The average height of 30 girls out of a class of 40 is 160 cms. and that of the remaining girls is 156 cms. The average height of the wholeclassis:
How manytimes do.the handsof a clock point towards each other in a day?
Twostations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Anothertrain starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet?
The ratio between the present ages of P and Q is 3:4. If the ratio of their ages after four years becomes7:9, what is Q’s age at present?
Howlong will a train 60m long traveling at 40 km an hour take to pass through a station whose platform is 90m long
By how much percentis four-fifth of 70 lesser than five-seventh of 122?
The radius of a circle is increased by 1%. What is the increase percentin its area?
Which of these is the same as 0.07 Kg?
If the square root of 9 is 3, then the square root of .9 is
‘If the average of 5 and K is equalto the average of 5, 12 and K, then the value of K is
Acylindrical water tank has a diameter of 7 meters and tank contains 2000 litres in the tank. What is the depth of water in the tank to the nearest centimeter?
Sarah is twice as old as her youngest brother. If the difference between their ages is 15 years. How old is her youngest brother ?
If $$3x = 6x - 15$$ then $$x + 8 = ?$$
Study the following table carefully and answer the questions given below:
Number of five different types of vehicles produced by a company over the year (in thousand)

The percentage of production of vehicle A to the total production of all the types of together was minimum in which of the following years among the given years?
The total of production of vehicle C in 1989 and vehicle D in 1988 was equal to the production of vehicle B in whichof the following years?
What was the approximate percentage increase in the production of vehicle E from 1989 to 1990?
The production of vehicle B in 1990 was approximately what percent of the total production ofail types of vehicles together in the same year?
Three-fourth of a numberis 20 less than 80% of the same number. What is 60 percent of that number?
Jeevan purchased 30 kg ofrice at the rate of Rs.11.75 per kg and 25 kgs of rice at the rate of Rs.12.25 per kg. He mixed the two and sold the mixture. Approximately, at what rate he sold the mixture to make 40 percentprofit in the transaction?
The average age of 25 boys and the class teacher is 16 years. If the ages of the class teacher and oneof the boys are excluded the average reducesto 15. What is the teacher’s age?
The cuberootof 5.832is:
In an examination 93% of students passed and 259 failed. The total number of students is:
The incomeof A and arein the ratio 3:2 and their expenditures in the ratio 5:3. If each saves Rs.1000, A’s incomeis:
12 toys go in a small packet, 14 such packets form a small box. 25 such boxes go in a carton. Atul purchased 15 cartons for his shot. How many toys did he purchase ?
A gameof 100 points, A can give B 20 points and C 28 points. Then, B can give C:
If the diameter of a sphere is doubled, the increase in its surface area will be:
Rs.1870 has been divided into three parts in such a waythathalf offirst part, $$(\frac{1}{3})^{rd}$$ of second part and $$(\frac{1}{6})^{th}$$ of third part are equal. The third part is:
Three cubes whose edges are 3cm, 4cm & 5cm respectively are melted with out any loss of metal into a single cube. The edge of new cubeis:
You are lying 120 ft away from tree that is 50 feet tall. You look up at the top of the tree. Approximately how far is your hear from the top ofthe tree in a straight line ?
In the following Pie Chart the people of various age group of a village is shown

The total population of the Village is 10,000. Find the correct answer for the following questions:
The people in 40-50 age group are less thanthat in 20-30 by
Whatis the ratio in the age group 30-40 to that of 10-20 ?
The numberof people in the age group less than 10 is what percent of total population ?
The difference between the minimum age group and the maximum age group is
John’s parents have 6 sons, all married and each one has 4 children. How many members are there in the family
At what rate percent, a sum of money doublesitself in 15 Years?
A cricketer scored 180 runsin the first test and 258 runs in the second. How many runs should he scorein the third test so that his average score in the three tests would be 230 runs.
Twopipescanfill a tank in two hours and three hours separately. If both the pipes are openedtogetherthen the time requiredto fill tank will be:
In a writing competition, the first place winner receives $$\frac{1}{2}$$ the prize money. The second place winner receives $$\frac{1}{2}$$ % of prize money of the winner and the third place winner receives $$\frac{1}{2}$$ the prize money second winnerreceives. If the third winner receives Rs.2,500, what is the total prize money?
HCF of two numbersis 4 and its LCM is 616 and one of the numberis 44, what is the other number?
A boy has 3 red marbles in his pocket, 4 blue marbles, and 4 green marbles. How many will he have to take out of his pocket to ensure that he has one of each colour ?
If $$3x + 5x = -8$$, then $$x + 1 = ?$$
Solve: $$\frac{0.853 \times 0.853-.147 \times .147}{0.853-.147}$$
A rectangle with length 12 and width 5 has an area that is four times the area of a triangle with base 3. What is the height of the triangle?
The arithmetic mean of four numbers is 120. While calculating the mean, one observation whosevalue is 33 was taken as 13. The correct mean is
A man spends 20% of his income on houserent, 25% of the remaining on milk products and rest on food and clothing. If he pays Rs.60 towards rent how muchhe spends on milk products?
One man and one womancan do a work in 10 days. In how many days one women alone can do the work?
On a map, 1 cm represents 10 kilometer. The distance from A to B is shown on map as $$\frac{15}{8}$$ cmsand calculate the actual distance between the two pointsn in kilometers
What decimal fraction is 20 mm of a metre
Whatis the sum ofall the natural numbers from 1 to 50 ?
Amanpurchased 400 shares with a face value of Rs.10/- each at Rs.12/-. If the company announcesRs.6/- per share calculate his earnings in percentage:
Some amount out of Rs.7000 was lent at 6% per annum and the remainin¢e ~ amount at 4% per annum. If the total simple interest from both the fraction in - 5 years was Rs.1600, calculate the sum lent at 6%?
A wire in the form of a circle of radius 84 cmsis cut and bent in the form of a square without losing any material. Find the side of the square
One hectometeris equal to
The average age of a batch of 40 students in a bus is 8 years. When the age of the conductor is included then the average age is increased by one year.Find the age of the conductor.
A shopkeeper gives discount of 10% on the marked price of an item anr’ .makes a profit of 10%. Find the cost of the item if the marked price is Rs.330/
A earns 50% of B’s salary. B earns 80% of C’s salary. If the total earnings for a month is Rs.22,000 find the earningsofA.
ComputerVirus can enter into the Computer System through
The part of a computer system containing the circuitry that does the adding, subtracting, multiplying, dividing and comparing is called as
Excel files have default extension of
Anerrorinthe computer data are program is called
The capacity of the floppy discis
A Computer Programmethat converts anentire programmeinto a machine languageat one timeis called ?
Two kinds of main memory are ?
JAVA is a
Central Processing Unit (CPU)
Whatdevice is used to connect a Computerto Internet?
The entire text created by a Word Processor is known as
Electronic transmission of the image of a document from one point to another is called
in multiple choice examinations, answersheets are evaluated by
The standard language usedto write queriesis :
If independent networks are connected, it is called
To movefrom one cell to other cell in Table, press
The storage device used to compensate for the difference in rates of flow of data from one deviceto anotheris termed as
Whichof the following Indian Company designs and manufactures Super Computers ?
Whatis the name of the screen symbol which showsthe placementof next character ?
In the Computerprofessional language, 1000 bits position is represented with
Educational materials for CAT preparation