If Rs. 25,000 is to be divided between A, B and C in the ration 1/10 : 1/6: 1/15, then how much will C get (in Rs)?

 Pipe A alone & pipe B alone can fill the same tank in 5 hours and 4 hours respectively. If the ratio of efficiency of pipe A & B together to that of pipe C alone is 9:2, then find time taken by pipe C alone to fill the same tank?

If a + a²+a³-1=0, then what is the value of a³ +(1/a)?

By reducing the circumference of a circle by 50 percent, by what percentage will its area decrease?

Cost of a diamond varies directly as the square of its weight. A diamond broke into four pieces with their weights in the ratio 1 : 2 : 3: 4. If the loss in the total value of the diamond was Rs.7000, the price of the original diamond was

Find the exact value of the following question:

$$ 3{1\over2} × 3 {1\over 7}+ 5{3\over4}÷{46\over3}=?$$

Allowing 20 % and 15 % successive discounts, the selling price of an article becomes ₹ 3,060; then the marked price will be: 

If $$ {81\ × 343\ ×625}={3^{p}}\ {7^{q}}\ {5^{r}}$$ then find out the value of  $$ {\sqrt{(p-r)^{2}+q^{2}}}$$.