Quantitative Aptitude - Arithmetic Ability Questions

If L : M = 3 : 5 and M : N = 2 : 3, then N : L = ?

Before a battle the ratio of tanks to planes in an army was 5 : 3. During the war 1000 tanks were destroyed and 800 planes were destroyed. The ratio of tanks to planes became 2 : 1. What is the number of tanks after the war.

Ticket for an adult is Rs 1500 and a child is Rs 800. 1 child goes free with two adults. If a group has 25 adults and 12 children what is the discount the group gets?

A  field  can  be  reaped  by  12  men  or  18  women  in  14  days.  In  how  many  days  can  8  men  and  16 women reap it?

P alone can do a piece of work in 8 days and Q alone can do the same work in 10 days. In how many days will both together complete the same work?

G is the centroid of ΔABC. If AG = BC, then measure of ∠BGC is

If a - b = -5 and a2+b2=73, then find ab.

If 6/7th of 8/5th of a number is 192, then 3/4th of that number is _____.