Quiz Discussion

${\left[ {{{\left( {\sqrt {81} } \right)}^2}} \right]^2} = {\left( ? \right)^2}$

• 1] 8
• 2] 9
• 3] 4096
• 4] 6561
• 5] None of these

The value of $\sqrt {\frac{{0.16}}{{0.4}}}$   is = ?

• 1] 0.02
• 2] 0.2
• 3] 0.63
• 4] None of these

$\sqrt {0.0169 \times ?} = 1.3$

• 1] 10
• 2] 100
• 3] 1000
• 4] None of these

How many two-digit numbers satisfy this property. : The last digit (unit's digit) of the square of the two-digit number is 8 ?

• 1] 1
• 2] 2
• 3] 3
• 4] None of these

The value of ${ \text{ }} \root 3 \of {\frac{{0.2 \times 0.2 \times 0.2 + 0.04 \times 0.04 \times 0.04}}{{0.4 \times 0.4 \times 0.4 + 0.08 \times 0.08 \times 0.08}}}$        is ?

• 1] 0.125
• 2] 0.25
• 3] 0.5
• 4] 0.75