$P = 18 \times 9 \div 6 + 5 \times 15 ÷ 25$ and $Q = 15 \div 5 \times 5 - 25 \div 5$, what is the value of (P ÷ Q) ?
Answer & explanation
Correct answer: option 3
Given:
P = 18 × 9 ÷ 6 + 5 × 15 ÷ 25
Q = 15 ÷ 5 × 5 - 25 ÷ 5
So, P = 18 × 9 ÷ 6 + 5 × 15 ÷ 25
= 18 x \(\frac{9}{6}\) + 5 x \(\frac{15}{25}\)
= 19 x 3 + 3
= 30
Q = 15 ÷ 5 x 5 - 25 ÷ 5
= \(\frac{15}{5}\) x 5 - \(\frac{25}{5}\)
= 15 - 5
= 10
(P ÷ Q） = \(\frac{30}{10}\) = 03