In a bag, the number of one rupee coins is three times the number of two rupees coins. If the worth of the coins is 120, find the numebr of 1 rupee coins

In a bag, the number of one rupee coins is three times the number of two rupees coins.
If the worth of the coins is 120, find the numebr of 1 rupee coins

Match the items on the right to the items on the left.

step 1

step 2

step 3

step 4

step 5

step 6

step 7