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Practice Addition & subtraction Questions and Answers

The mean deviation of the data 3, 10, 10, 4, 7, 10, 5 is:
If × stands for addition, ÷ stands for subtraction. + stands for multiplication and ̶ stands for division, then what is the val...
Vishnu travelled equal distances at speeds of 10 km/hr., 30 km/hr., and 8 km/hr., and took a total of 15.5 minutes to complete. Find the total distance he ...
Ehsaan is twice as good a worker as Kamal and together they finish a piece of work in 29 days. In how many days will Kamal, working alone, finish the...
Compute: 1112 ÷ 139 ̶ 5
What is the value of `(0.55xx4.5)/(0.81) ?`
Simplify: (2x)²-(2y)²-(4x)²
If sin x = 4/5, then Cosecx + Cot X =
There are total 200 students in a school, of which 1/5 are boys. Find the number of girls in the school.
If the sum of the digits of a three digit number is subtracted from that number, then it will always be divisible by
(0.04)5 × (0.2)4 ÷ (0.008)2 = (0.2)?
The number of five–digit telephone numbers having at least one of their digits repeated is
A sum of Rs.8200 is to be divided among 6 brothers, 5 sisters and 2 aunts. If each sister receives thrice as much as each aunt and each brother receives fo...
A sum of Rs. 663 is divided among X, Y and Z such that X gets Rs. 156 more than Y. Y gets Rs. 78 more than Z. Find the share of Z?
Monthly savings of X is 60% of his monthly income which is Rs. 7500. If ratio of monthly expenditure of Y and X is 15:8 respectively and monthly savings of...
In a lottery, there are 11 prizes and 30 blanks. A lottery is drawn at random. What is the probability of getting a prize?
The value of i ∙ (j × k) + j∙ (i× k)+ k∙ (i × j) =
The value of λ for which the 2 vectors 2i – j + 2k and 3i + λ j + k are perpendicular is
₹ 27,600 is distributed among Thomas, David and Vijay in such a manner that 1/7 of the share of Thomas, 1/3 rd of the share of David and 1/2 of the share...
The following chart gives the expenditure incurred by a publisher to bring out a book Find the percentage of the total expenditure incurred for printing....
₹ 1,800 is divided among Nitin, Tushar and Gitanjali. The share of Gitanjali is 5/4 of the sum of the shares of Nitin and Tushar. What is the share of Gi...
The average of first nine prime numbers is ...
Select the correct set of symbols which will fit in the given equation. 5 0 3 5 = 20
Sam ranked ninth from the top and thirty – eighth from the bottom in a class. How many students are there in the class?
Evaluate
Consider a two-digit number where the ratio of the unit digit to the tens digit is 2:3. If the total of these digits equals 15, what is the product of the ...
Two numbers P and Q are in the ratio 5:8. If X is added to the smaller number and 12 is subtracted from the larger number, the new ratio of P and Q becomes...
The efficiency of a woman is 33.33% less than that of a man, whose efficiency is three times that of a child. If 2 children, 3 women, and 4 men together ca...
In a mixture 'P', 5 liters of water are replaced with honey, resulting in the mixture containing 55% honey. If the original mixture 'P' consisted of 50% wa...

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