Question
How many terms are there in the geometric progression 4,
20, 100...... 62500?Solution
First term (a) = 4  common differences (r) = 20/ 4=5 T = 62500 Tn = arn-1 62500=4× (5)n-1 625×25 = (5)n-1 56 = (5)n-1 n-1=6 n=7 Hence the number of terms (n) = 7
The national song ‘Vande Mataram’ was composed by Bankim Chandra Chatterjee i n which language?
Which of the following seas has highest salinity in the world?
The missing term of the series isÂ
A2, C5, E8, G11, ____________
Which amongst the following statements is/are not correct ?
1.     Isthmus is a narrow strip of land joining two landmasses.
2. �...
If * is an operation such that a * b = 3a – 4b. find the value of 3*4
Penicillium is a _____________.
The six freedoms in Article 19 can be curtailed by:
New education policy. 2020 is goal to achieve 100% gross enrolment Ratio (GER) in school Education by the year ________.
If the square root of the product of two numbers equals their average, then
Relevant for Exams:
