In a class of 40 students, 32 offer mathematics, 24 offer Physics, and 4 offer neither Mathematics nor Physics. How many offer both Mathematics and Physics?

Find (\(\frac{1}{0.06} \div \frac{1}{0.042}\))\(^{-1}\)

A woman buys 270 oranges for N1800.00 and sells at 5 for N40.00. What is her profit?

Simplify 1 - (7/3 x 5/4) + 3/5

Simplify \(\frac{\sqrt{98} - \sqrt{50}}{\sqrt{32}}\)