Question
If the average of two numbers is 20 and the square root
of their product is 16, then the difference between the numbers is:Solution
Average of numbers = (a + b)/2 = 20 a + b = 40 ...(I) square root of these numbers = √ ab = 16 squaring both sides ab = 256 a – b =? So now – (a + b)2 = (a- b)2 + 4ab (40)2 – 4 ×256 = (a-b)2 (a-b)2 =1600- 1024 = 576 a – b = 24
A light bulb working on a 18 V battery draws a current of 3 A. What will be the resistance of the bulb?
What is “A” in NIRYAT Portal?
Match List – I with List – II and select the correct answer using the codes given below the lists.
The IRDAI (Insurance Regulatory and Development Authority of India) was formed based on the recommendations of which committee?
What is the (approximate) amount of financial assistance approved by International Monetary Fund for Sri Lanka in March 2023 to help the country overcom...
How many matches will be played in total by all the team in World Cup 2023?
Which project between India and Spain involves developing a new class of antibiotics against gram-negative bacterial infections?
Hemathas is associated with which Indian state?
Which ports belong to the western coast of India?
The Reserve Bank of India (RBI) has increased the threshold for bulk fixed deposits for Scheduled Commercial Banks and Small Finance Banks to ₹3 crore...
Relevant for Exams:
