Quantitative Aptitude - Arithmetic Ability Questions

If X is a prime number, LCM of X and its successive number would be

For triangle PQR, find equation of altitude PS if co-­ordinates of P, Q and R are (1,2), (2,­-1) and (0,5) respectively?

In ΔABC, D and E are points on side AB and AC respectively. DE is parallel to BC. If lengths of AD, DB and DE are 9 cm, 6 cm and 5.4 cm respectively find length of BC?

Find the value of x if 0.08x + 0.04y = 10 and 0.2(x-1) + 0.4y = 24.8

(secA - 1)/(secA + 1) is equal to?

In the given Pie-chart, the comparative study of the production of Rice, Wheat, Sugar and Tea of a country is given. Study the Pie-Chart and answer the following questions.

From this diagram, the ratio of sum of wheat and sugar production to difference in production of rice and tea is

The smallest number that must be subtracted from 2800 so that the obtained number is a perfect square is