Home
Class 9
MATHS
Find:(2^(30)+2^(29)+2^(28))/(2^(31)+2^(3...

Find:`(2^(30)+2^(29)+2^(28))/(2^(31)+2^(30)-2^(29))`

A

`10/7`

B

`7/15`

C

`7/10`

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
C
We have.
`(2^(30) +2^(29) +2^(28))/(2^(31)+2^(30) - 2^(29)) = (2^(28)(2^(2)+2+1))/(2^(29)(2^(2) + 2-1)) = (2^(28)(4+2+1))/(2^(29) (4+ 2-1))`
` = (7)/(5)xx(1)/(2^((29-28))) = (7)/(5xx2) = (7)/(10)`
Promotional Banner

Topper's Solved these Questions

  • NUMBER SYSTEMS

    RS AGGARWAL|Exercise Exericse 1A|9 Videos

  • NUMBER SYSTEMS

    RS AGGARWAL|Exercise Exericse 1B|5 Videos

  • MEAN , MEDIAN AND MODE OF UNGROUPED DATA

    RS AGGARWAL|Exercise Multiple Choice Questions (Mcq)|18 Videos

  • POLYNOMIALS

    RS AGGARWAL|Exercise Multiple Choice Questions (Mcq)|32 Videos

Similar Questions

Explore conceptually related problems

Prove that (2^(30)+2^(29)+2^(28))/(2^(31)+2^(30)-2^(29))=(7)/(10)

PRove that (2^(30)+2^(29)+2^(28))/(2^(31)+2^(30)-2^(29))=(7)/(10)

y^(3)-2y^(2)-29y-42

int_(3)^(29)(root(3)((x-2)^(2))dx)/(3)

P(-2)=6(-2)^(3)+29(-2)^(2)+44(-2)+21

If ((n),(r)) denotes nC_r , then Evaluate 2^15((30),(0))((30),(15))-2^14((30),(1))((29),(14))+2^13 ((30),(2))((28),(13))...............-((30),(15))((15),(0))

If the value of the sum 29(.^(30)C_(0))+28(.^(30)C_(1))+27(.^(30)C_(2))+…….+1(.^(30)C_(28))+0.(.^(30)C_(29))-(.^(30)C_(30)) is equal to K.2^(32) , then the value of K is equal to

(28!)/(29) find R.

(27^(29))/(28) Find R.