Subject
Quantitative Aptitude
Topic
Number
If x is a positive even number, then each of the following is odd except:
If x is a positive even number, then each of the following is odd except:
ক)
(x+3)(x+5)খ)
x2+5গ)
x2+6x+9ঘ)
3x2+4ঙ)
None of theseExplanation
-(x+3)(x+5): even + odd = odd, তাই (odd × odd) = odd -x²+5: even² = even, তাই (even + odd) = odd -x²+6x+9: even² = even, 6 × even = even, তাই (even + even + odd) = odd -3x²+4: 3 × even² = even, তাই (even + even) = even -None of these *লক্ষ্য করুন, শুধুমাত্র (D) 3x²+4 হল even। বাকি সবগুলি odd। *সুতরাং, সঠিক উত্তর হল (D) 3x²+4।Related questions
On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is:Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is:A number is as much greater than 36 as the less than Find the number.If one-third of one-fourth of a number is 15, then three-tenth of that number is:If the number 5 * 2 is divisible by 6, then * =?কাজের দিন ২ টাকা পাওনা এবং অনুপস্থিতির দিন ৫০ পয়সা জরিমানা এই শর্তে সেপ্টেম্বর মাসে ৪০ টাকা পেল। সে কত দিন কাজে উপস্থিত ছিল?476 ** 0 is divisible by both 3 and The non-zero digits in the hundred's and ten's places are respectively:The sum of two numbers is 25 and their difference is Find their product.