Question

if 2 pens or 5 pencils cost Rs 10 , then the cost of 4 pens and 4 pencils amount to ?( pls ans long method)ans is 28 but how?​

Answer 1

Answer:

Step-by-step explanation:

LET THE COST OF 1 PEN AND 1 PENCIL BE X AND Y RESPECTIVELY.

2X = 10                AND                   5Y = 10

 X = 5                  AND                      Y = 2

SO ,

           4X + 4Y =  4×5 + 4×2

                         =   20 + 8

                         =   28

THUS THEY WILL AMOUNT TO Rs 28

HOPE THIS HELPS YOU..... : )

PLS MARK IT AS BRAINLIEST.....

Answer 2

Answer:yes its ans 28 you can see here

Step-by-step explanation:

2 Pen cost 10rupes

1 ........................10/2=5

5 pencil cost 10$

1 ....................10/5=2

then 1 pen cost prise 5

And 1pencil ...............2

4 pen cost prise is 5*4=20

4 pencil..................2*4=8

Then both prise is 20+8=28ans

I hope its helpfull for everyone❤✌