## Question 40

Simplify $\frac{1\tfrac{1}{3}+\tfrac{1}{2}\text{ of }6}{\tfrac{1}{3}\times 15\div \tfrac{5}{3}}$

For you to succeed

Simplify $\frac{1\tfrac{1}{3}+\tfrac{1}{2}\text{ of }6}{\tfrac{1}{3}\times 15\div \tfrac{5}{3}}$

Find the radius of a sphere whose surface area is 154 cm^{2} [Take $\pi =\tfrac{22}{7}$]

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