Quantitative Aptitude - Arithmetic Ability Questions

What least value which should be added to 1812 to make it divisible by 7, 11 and 14?

If 31x + 31y = 403, then what is the average of x and y?

If ab-1b=cb-1c=ac-1a, then ac+ba+cb

In a quadrilateral PQRS, l_S= 90°. A circle (o, r) touches the sides PQ, QR, RS and SP at A, B, C and D respectively. If QR= 38 cm, RS = 25 cm and QA = 27 cm, find 'r'.

For an article the profit is 190% of the cost price. If the cost price increase by 10% but the selling price remains same, then profit is what percentage of selling price (approximately)?

A dishonest shopkeeper professes to sell goods at his cost price but uses a false weight of 950 gms, for each kilogram. His gain percentage is

Which of the following is a reductible fraction?

In a class of 50 students there are 27 boys. The average weight of these boys is 72 Kg and average weight of the full class is 55.44 kgs. What is the average weight (in kgs) of the girls of the class?