Question

(1) twice a number subtracted from 5 times of the same number give 12 then
(a) write the algebraic form of the statement
( b) find the number

(2) the length of a rectangle is 1 cm more than two times its breadth .it's perimeter is 80 what is its length, breadth.

(3) the price of a pen is a rupees more than the price of a price of a pencil . the price of a book is 8 rupees more than the price of a pen the total price of 12 pens and 12 pencil is equal to the total price of a pencil a pen and a book
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Answer 1

Answer:

1) 5x-2x=12

or, 3x=12

or, x= 4

2) let , breadth be x cm

length is= (2x+1) cm

so, 2(2x+1+x)=80

or, 6x +2=80

or, 6x= 78

or, x= 13

breadth=13

length= 27

Answer 2

Answer:

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