# Test: Arithmetic V - Challenging

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Question 1:   Calculate: $0.308:0.14+1.2$
$340$
$34$
$3.4$
$0.34$
Question 2:   Calculate: $6.85×3.2-1.7×6.85$
$102.75$
$1.0275$
$10.275$
$0.10275$
Question 3:   Find the arithmetic mean of the numbers $\frac{1}{4}$ and $5\frac{2}{7}$
 $2\frac{43}{56}$
$4$
$5$
$1\frac{43}{56}$
Question 4:   Calculate: ${\left(4-3\frac{1}{4}\right)}^{4}:{\left(\frac{3}{4}\right)}^{2}$
$1\frac{3}{4}$
$1$
$1\frac{9}{16}$
$\frac{9}{16}$
Question 5:   Simplify the expression: $7\sqrt{3}-\sqrt{12}+\sqrt{27}$
$5\sqrt{3}$
 $2\sqrt{3}$
$\sqrt{3}$
$8\sqrt{3}$
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