2 / 3 is a rational number whereas √2 / √3 is

• Also a rational number

• An irrational number

• Not a number

• A natural periodic number

Greatest number which divides 926 and 2313, leaving 2 and 3 remainders, respectively, is

• 52

• 54

• 67

• None of these

 If X=(163 + 173 + 183 + 193), then x divided by 70 leaves a remainder of….

•  0
•  1

• 6969

• 35

The simplified value of [(0.111)3 + (0.222)3 – (0.333)3

• 0.999
• 0.111
•  0
• 0.888

When 2 1/2 is added to a number and the sum is multiplied by 4 1/2 and then 3 is added to the product and then the sum is divided by1 1/5, the quotient becomes 25, what is the number?

• 2 1/2
•  3 1/2
• 4 1/2
• 5 1/2