SSC CGL Tier-II practice question
A factory's monthly output Q (in tonnes) is such that the cube root of Q, when increased by 25% of itself, equals 15. Find Q.
From a SSC CGL Tier-II Quantitative Aptitude practice set · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (C) 1728
Let c = Q^(1/3). Then c + 0.25c = 1.25c = 15 ⟹ c = 12. So Q = c³ = 12³ = 1728.
हिंदी में प्रश्न
एक कारखाने का मासिक उत्पादन Q (टन में) इस प्रकार है कि Q के घनमूल को उसके स्वयं के 25% से बढ़ाने पर 15 प्राप्त होता है। Q ज्ञात करें।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 1728
मान लें c = Q^(1/3)। तब c + 0.25c = 1.25c = 15 ⟹ c = 12। अतः Q = c³ = 12³ = 1728।
More solved Quantitative Aptitude questions
- The sum of the digits of a three-digit number is 11. The tens digit equals the units digit, and the units digit exceeds the hundreds digit…
- Simplify: 6.71 x 3.8 - 3/5 = ?
- In quadrilateral ABCD, the four angles (in degrees) are angle A = (x), angle B = (x + 20°), angle C = (2x − 10°), angle D = (x + 30°)…
- If √9216 = 96, find the value of √921600 + √92.16.
- Find the distance between the points A(-7, 4) and B(1, -11).
- paint costing Rs 20 per litre is mixed with a costlier variety in the ratio 5:3 to get a mixture worth Rs 32 per litre. Find the cost…