Identify the correct mathematical statement(s):
A. If the cost price of 10 articles is equal to selling price of 9 articles, then profit is 10%.
B. 42⁄3 + 31⁄2 − 12⁄3 = 13/2
C. If x/y = 2/75, then (y − x)/(y + x) = 77/73
D. 1/0.04 is equal to 25
Choose the correct answer from the options given below:सही गणितीय कथन/कथनों की पहचान कीजिए:
A. यदि 10 वस्तुओं का लागत मूल्य 9 वस्तुओं के विक्रय मूल्य के बराबर है, तो लाभ 10% है।
B. 42⁄3 + 31⁄2 − 12⁄3 = 13/2
C. यदि x/y = 2/75, तो (y − x)/(y + x) = 77/73
D. 1/0.04 संख्या 25 के बराबर है।
नीचे दिए गए विकल्पों में से सही उत्तर चुनिए:
Pick an option to check yourself, or open the answer below.
Show answer & explanation
Correct answer: A. B and D Onlyकेवल B और D
Explanation
A: CP of 10 = SP of 9, so on 9 articles profit = CP of 1; profit % = 1/9 × 100 ≈ 11.11%, not 10% – false. B: 14/3 + 7/2 − 5/3 = 3 + 7/2 = 13/2 – true. C: take x = 2, y = 75: (75 − 2)/(75 + 2) = 73/77, not 77/73 – false. D: 1/0.04 = 100/4 = 25 – true. Hence B and D only.A: 10 का लागत मूल्य = 9 का विक्रय मूल्य, अतः 9 वस्तुओं पर लाभ = 1 वस्तु का लागत मूल्य; लाभ % = 1/9 × 100 ≈ 11.11%, 10% नहीं – असत्य। B: 14/3 + 7/2 − 5/3 = 3 + 7/2 = 13/2 – सत्य। C: x = 2, y = 75 लेने पर (75 − 2)/(75 + 2) = 73/77, न कि 77/73 – असत्य। D: 1/0.04 = 100/4 = 25 – सत्य। अतः केवल B और D।More Mathematical Reasoning and Aptitude questions
- Match List - I with List - II.List - I (Word) List - II (Code) A. BROWN I. 50 B. TRING II. 72 C. APPLE III. 67 D. WATER IV. 68 Choose the c…
- The incomes of A and B are in the ratio of 3:2 and their expenses are in the ratio of 5:3. If each of them saves Rs.3000, then A's income (…
- Complete the following series: 582, 581, 585, 576, 592, 567, ____
- Arrange the following fractions in descending order: A. 9/11 B. 8/9 C. 4/7 D. 3/5 E. 8/15 Choose the correct answer from the options given…
- Identify the correct mathematical statements: A. A batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3.…
- Match the LIST-I with LIST-IILIST-I (Word) LIST-II (Code) A. CRAB I. 32 B. BARK II. 49 C. OVER III. 24 D. SING IV. 60 Choose the correct an…