RRB NTPC CBT-1 practice question
If log 2 = 0.3010 and log 3 = 0.4771, then the value of log 16 is:
From a RRB NTPC CBT-1 Quantitative Aptitude practice set · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (A) 1.2040
Factorise the argument: 16 = 24. Using log (mn) = log m + log n and log (mᵏ) = k log m, log 16 = 4 log 2. Substituting the given values: 4 × 0.3010 = 1.2040.
हिंदी में प्रश्न
यदि log 2 = 0.3010 और log 3 = 0.4771 हो, तो log 16 का मान है:
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 1.2040
पहले संख्या का गुणनखंड करें: 16 = 24। log (mn) = log m + log n तथा log (mᵏ) = k log m के नियम से, log 16 = 4 log 2। दिए गए मान रखने पर: 4 × 0.3010 = 1.2040।
More solved Quantitative Aptitude questions
- Two tangents PA and PB are drawn from an external point P to a circle with centre O (radius r), touching the circle at A and B. If ∠APB =…
- Three partners invest ₹12,000, ₹18,000 and ₹24,000 respectively for a full year in a bakery. If the total profit is ₹27,000, what is the…
- When a number is divided by 6, the remainder is 4 and the quotient obtained is Q. When Q is divided by 5, the quotient is 7 and the…
- In triangle ABC, D and E are points on sides AB and AC respectively such that DE is parallel to BC. If AD = 7, DB = 14 and AE = 5, find…
- At a village fair, the number of tickets sold each day of the first four days was 150, 170, 190 and 210, rising by a fixed amount daily…
- A car travels at 90 km/h. How far does it go in 3 hours?