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5 Apr 2019

Fibonacci number

Daily practice Math and live answers from educators!

Fibonacci number


  1. a series of numbers in which each number ( Fibonacci number ) is the sum of the two preceding numbers. The simplest is the series 1, 1, 2, 3, 5, 8, etc.

Example:
 the series of numbers:
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ...
check how it is:
0+1=1
1+1=2
2+3=5
5+3=8  and so on.....

The next number is found by adding up the two numbers before it.


0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ...

the next number in the sequence above is

3 Apr 2019

Daily practice Math and live answers from educators!



Calculate the money-grade-10

Calculate the money required to buy: 
(i) 350, Rs. 20 shares at a premium of Rs. 7. 
(ii) 275, Rs. 60 shares at a discount of Rs. 10. 
(iii) 50, Rs. 40 shares quoted at Rs. 38.50. 

2 Apr 2019

revision -grade-10


Revision -grade-10 

Find the ratio in which the line 2x + 3y – 5 + 0 divides the line segment joining the points (8, -9) and (2,1). Also, find the co-ordinates of the point of division. 

grade-10 revision

The internal and external diameters of a hollow hemispherical vesel are 24 cm and 25 cm respectively. The cost to paint 1 cm2 of the surface of the vessel is Rs. 5. Find the total cost to paint the vessel all over (use Ï€ = 3 x 1/7). 

What is the ratio of the numbers

Daily practice Math and live answers from educators! There are 47 female teachers and 18 male teachers at BHUVAN's ACADEMY. What is th...