For what value of 'K' will the pair of equations 3x+4y=12 and kx+12=30 does not have a unique solution ?

If one of the roots of the quadratic equation x^2+mx+24= 0 is x=1.5, then what is the value of m ?

A number when divided by divisor leaves a remainder of 24. When twice the original number is divided by the sa...

10 cats caught 10 rats in 10 seconds. How many cats are required to catch 100 rats in 100 seconds ?

If A:B = 3:4, C:B= 5:4, C:D=10:9 then A:B:C:D is -

A fruit seller had some apples. He sold 40% apples and still has 420 apples left. Originally he had :

What percentage of numbers from 1 to 70 has 1 or 9 in the unit digits ?