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$${\text{If }}{\left( {\frac{3}{5}} \right)^3} \times {\left( {\frac{3}{5}} \right)^{ - 6}} = $$ $${\left( {\frac{3}{5}} \right)^{2x - 1}}{\text{,}}$$ then x is equal to?
A car takes 15 minutes less to cover a distance of 75 km, if it increases its speed by 10 km/hr from its usual speed. How much time would it take to cover a distance of 300 km using this speed ?
Sum of three consecutive integers is 51. The middle one is -
What is the Sum of First 70 Odd Numbers?
If $$a = 0.1039{\text{,}}$$ then the value of $$\sqrt {4{a^2} - 4a + 1} $$ $$ + $$ $$3a$$ is ?