Question

Rajan has 2o pens with him. Some blue
and the remained red The number
of blue pens is 10 more than the red
pens. How many blue pens.How many
red pens?

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Answer 1

Answer:

Supposing Red pens = x

Then blue pens = x + 10

Final equation will be --->  x + x + 10 = 20

Then we need to transpose and find the answer like this

x + x + 10 = 20

= 2x + 10 = 20

= 2x = 20 - 10

=2x = 10

= x = 10/2

Therefore x = 5

FINAL ANSWER ---> So in the beginning as I said red pens will be 'x' and Blue pens will be 'x + 10' so there will be 5 red pens and 15 blue pens.