Question
A girl found the answer for the question “subtract the
sum 1/4 and 1/8 from unity and express the answer in decimals” as 1.5. The percentage of error in her answer was?Solution
Correct answer = 1 - (1/4+1/8) = 1 - ((2+1)/8) ⇒ 1 - 3/8 = 5/8 = 0.625 Difference in answer = 1.5 - 0.625 = 0.875 Required percentage = 0.875/0.625 × 100 = 140 %
More No. System Questions
(23 × 8) – (13 × 5) + 67 =? x 6
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(190/38) × (55/5) + (306/18) = ?
24% of 400 × 16% of ? = 384
140% of 75 + 152 - 160 = ?
(2500 ÷ √625) × √(42.25) = ? ÷ 4
What will come in the place of question mark (?) in the given expression?
(240% of 175 ÷ √16) X 6 + 80% of 400 = ?3 + 179 + 42
Evaluate:
7.5 + 12 ÷ (4 × 1.5) − 2.4
?2 - (40% of 240) = 25 X 5
- What will come in the place of question mark (?) in the given expression?
32% of 74% of ? = 16% of 37% of 180
