Quantitative Aptitude - Arithmetic Ability Questions

Vinay professes to lose 4% on sugar and uses a weight of 620 gm instead of 1 kg. What is the total profit percentage?

The ratio of present ages of Ratna and Shantanu is 5:4. After 19 years the ratio of their ages will be 10:9. What is Ratna's present age?

If √(sec2A ­ 1) = x, then the value of x is

PQR is an equilateral triangle whose side is 10 cm. What is the value (in cm) of the inradius of triangle PQR?

If 11+11+11+1x = 58, then what is the value of x?

What is the simplified value of (cos4 A – sin4 A)?

The marked price of a book is Rs 4200. The shopkeeper gives two successive discounts of 25% and y% to the customer. If the customer pays Rs 2898 for the book, then what is the value (in percentage) of y?

What is the x-intercept of line joining (4, 2) and (6, 3)?