Each member of a Picnic party contributed twice as many rupees as the total collection was Rs.3042. The number of members present in the party was 

Find the value of   $$ {(0.75)^3\over1-.75}+[0.75+(0.75)^2+1]$$

An arc of 30 ° in one circle is double an arc in a second circle, the radius of which is three times the radius of the first. Then the angles subtended by the arc of the second circle at its center is 

The average of four consecutive odd numbers is 36. What is the smallest of these numbers?

Among three numbers, the first is twice the second and thrice the third. If the average of the three numbers is 49.5, then the difference between the first and the third number is: 

The value of $$ {(sec^{2}θ+tanθ\cotθ-tan^{2}θ)}$$

P, Q, R are employed to do a work for Rs. 5750. P and Q together finished 19/23 of work and Q and R together finished 8/23 of work. Wage of Q, in rupees, is-

$$ (17)^{2} + 6 × (13)^{2}-212×6$$