Question

20. Five times the price of a pen is 3 17 more than three times its price. Find the price of
the pen.
21. The number of boys in a school is 334 more than the number of girls. If the total strength of
the school is 572, find the number of girls in the school.
of the park is 168​

Answer 1

Five times the price of a pen is 5x
Here we are assuming the price of the pen to be x

Five times the price of the pen is 317 more than three times its price (x)

5x=317+3(x)
5x=317+3x

Bringing 3x to the other side we get,
5x-3x=317
2x=317
X=317/2
X=₹158.5

X(cost of the pencil) is ₹158.5