List of top Arithmetic and Mental Ability Questions

The least common multiple of the numbers 20, 15 and 45 is
The sum of the first n numbers, is 1275. The value of n is equal to
Arrange the numbers in the descending order : 3/11, 7/13, 9/19, 6/17
In a triangle ABC, the lengths of sides AB and BC are 18 cm and 40 cm respectively. If the angle between these two sides is 90 degrees, the area of the triangle is
A can do a work in 18 days. A and B both together can do the same work in 11 days. Then, in one day, B alone can do
Two friends A and B have decided to donate a sum of amount to a government school in the ratio 2 : 3. If B has donated Rs.120000, then the total amount donated by both A and B is
The total weight of 18 non-identical items is 1170 kg. One item of weight 82kg is removed from them. Then, the average weight of remaining items, is
A shop owner bought an item for Rs.24550. He sold the item for 20% loss. The selling price was
The square root of the number 10000000000 is
Which one of the following is not true?
When \( 4^{157} \) is multiplied with \( 7^{113} \), what is the digit in the least significant place?
A three-digit number is selected such that it contains no zeros. Now this three-digit number is written beside itself to form the six-digit number. Its factor is _______.
The smallest positive number which is divisible by the numbers 2, 3, 4, 5, 6, 7 is
Two statements followed by two conclusions are given. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follow from the statements. Statements: 1. Mathematics is essential for all subjects.
2. Statistics is applied in Economics.
Conclusions: I. Mathematics is not needed in Sociology.
II. Economics is applied in Statistics.
A person bought an item for Rs. 1350 and spent Rs.150 towards transportation of the item. Then he sold it for Rs.1800. The profit percentage is
Two statements followed by two conclusions are given. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follow from the statements. Statements: 1. Some animals are mammals.
2. All animals are not herbivorous.
Conclusions: I. Some animals are herbivorous.
II. All animals are mammals.
A can do a work in 8 days and B can do the same work in 16 days. If A, B and C can together do the same work in 4 days, then C can do the work in
If RUCH is coded as QTBG, then MNOP corresponds to
In a certain coding system, the word MODEL is coded as JLABI, then ENERGY is given by
A man walks 24 km distance straight from a place X and reach another place Y in the Eastern direction. At Y, he turns 90 degrees and walks straight towards North to reach the Place Z which is 7 km from Y. The distance between X and Z is
X can do a work in 10 days. X and Y both together can do the same work in 6 days. Then Y alone can do the work in
Rs. 24000 has to be shared between A and B in the ratio 7 : 5. Then B will get
The very next number in the sequence 5, 10, 40, 320, ... is
The sum of the numbers 12, 24, 36, 48, ......, 120 is
The average score of a cricketer in his 10 innings is 45 runs. If he has scored 70 runs in another 3 innings, then the average score of the player is