if θ is acute angle and sin (θ+18⁰) = 1/2, then the value of θ in circular measure is :

Perimeter of rectangle with length 76 meter and breadth 48 meter: 

$$\sqrt{ {1-sinA\over1+sinA}}$$ is equal to ?

78 is divided into two parts in such a way that the ratio of quadruple of the first part and five times the second part is 14: 15. The first part is

A job can be completed by 12 men in 12 days. How many extra days will be needed to complete the job if 6. men leave after working for 6 days? 

The circle-graph given here shows the spending of a country on various sports during a particular year. Study the graph carefully and answer the question given below it.

If the total amount spent on sports during the year was Rs. 2 crores, the amount spent on cricket and Hockey together was:

A train is traveling at the rate of 45km/ hr. How many seconds will take to cover a distance of $$ {4\over5} $$ km? 

If 2x + 3y = 87 and 3x – 3y = 48, what is the value of x?