Which of the following statement(s) is/are true?
A. If an athlete runs 200 metres in 24 seconds, then his speed is 30 Km/hr.
B. Sixty five percent of a number is 21 less than 4/5 of that number. The number is 150.
C. A car is running at a speed of 108 Km/hr. The distance covered by car in 15 seconds is 450 metres.
D. Difference between 2 numbers A and B is 1660. If 7.5% of A is 12.5% of B, the value of A & B is 4150 and 2200.
Choose the correct answer from the options given below:निम्नलिखित में से कौन-सा/से कथन सत्य है/हैं?
A. यदि कोई एथलीट 24 सेकंड में 200 मीटर दौड़ता है, तो उसकी गति 30 किमी/घंटा है।
B. किसी संख्या का 65 प्रतिशत उसी संख्या के 4/5 से 21 कम है। वह संख्या 150 है।
C. एक कार 108 किमी/घंटा की गति से चल रही है। कार द्वारा 15 सेकंड में तय की गई दूरी 450 मीटर है।
D. दो संख्याओं A और B का अंतर 1660 है। यदि A का 7.5%, B का 12.5% है, तो A और B के मान 4150 और 2200 हैं।
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Correct answer: C. A and C Onlyकेवल A और C
Explanation
A: 200/24 m/s = 8.33 m/s × 18/5 = 30 km/h — true. B: 0.8x − 0.65x = 21 → 0.15x = 21 → x = 140, not 150 — false. C: 108 km/h = 30 m/s, so 30 × 15 = 450 m — true. D: 7.5A = 12.5B → A : B = 5 : 3; difference 2 parts = 1660 → A = 4150, B = 2490, not 2200 — false. Hence A and C only.A: 200/24 मी/से = 8.33 मी/से × 18/5 = 30 किमी/घंटा — सत्य। B: 0.8x − 0.65x = 21 → 0.15x = 21 → x = 140, न कि 150 — असत्य। C: 108 किमी/घंटा = 30 मी/से, अतः 30 × 15 = 450 मीटर — सत्य। D: 7.5A = 12.5B → A : B = 5 : 3; 2 भागों का अंतर 1660 → A = 4150, B = 2490, न कि 2200 — असत्य। अतः केवल A और C।More Mathematical Reasoning and Aptitude questions
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