Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Balls are arranged in rows to form an equilateral triangle .The first row consists of one ball, the second two balls and so on. If 669 more balls are added, then all the balls can be arranged in the shape of a square and each of its sides then contains 8 balls less than each side of the triangle. find the initial number of balls.
Ans: Let their be n balls in each side of the triangle
∴ No. of ball (in ?) = 1 + 2+ 3...........=n(n +1)/2
No. of balls in each side square = n-8
No. of balls in square = (n-8)^{2}
APQ n(n +1)/2 + 660 = (n-8)2
On solving
n^{2} + n + 1320 = 2(n^{2} - 16n + 64)
n^{2} - 33n - 1210 = 0
⇒ (n-55) (n+22) = 0 n=-22 (N.P)
n=55
∴No. of balls =n(n +1)/2 = 55x56/2
= 1540
One of the more significant ideas that we'll be discussing in this section is slope. The slope of a line is a measure of the steepness of any particular line and it can also be uti
Drawing Escher style tessellation
Example of Fractional Equations: Example: Solve the fractional equation (3x +8)/x +5 =0 Solution: Multiply both sides of the equation by the LCD (x). (x) ((3x
why modi method is used in operation research
Tests for an Ideal Index Number 1. Factor Reversal Test Factor Reversal Test indicates that when the price index is multiplied along with a quantity index that is factors
The Stefan-Boltzmann law can be employed to estimate the rate of radiation of energy H from a surface of copper sphere with radius = 0.15 ±0.01 m, as in H=AesT^4 where H is in watt
Prove that the parallelogram circumscribing a circle is rhombus. Ans Given : ABCD is a parallelogram circumscribing a circle. To prove : - ABCD is a rhombus or AB
how do you subtract 2 1\8 from 5\16
dterminant order 3*3
12. List the merits and limitations of using North West corner rule.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: info@expertsmind.com
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd