Directions (70-73):

Question

Directions (70-73):

Find the approximate value of x.

Q70. 779.23 ÷ 13 + 4.98 + 23 = x% of 60.03

1. A. 187
2. B. 121
3. C. 169
4. D. 147 (Correct answer)
5. E. 177

Correct Answer

Option D — 147

Detailed Solution & Explanation

The correct answer is 147.

Key Points

• In approximation questions, round each number to a convenient value and compute.
• 779.23 ÷ 13 ≈ 59.94, then 59.94 + 4.98 + 23 ≈ 87.9.
• This equals x% of 60.03 ≈ 60, so:
• 87.9 = (x/100) × 60 → x = (87.9 × 100) ÷ 60 ≈ 146.5 ≈ 147.
• 'x% of a number' means (x/100) × number; rearrange to x = (value × 100) ÷ number.
• Since the question asks for an approximate value, round sensibly (60.03 → 60, 4.98 → 5).

Exam Tip

• don't chase decimals in approximation sets — the options are far apart (121, 147, 169…), so rounding to whole numbers is faster and still lands on the correct choice.