Question

Alex bought 3 pens for ₹ 45 . How much money will be needed to buy 10 such pens?

Answer 1

Answer:

150 Rs

Step-by-step explanation:

Step 1 : We can solve it by using following method,

support total cost of 10 pens is X

45 / 3 = X / 10

Step 2 : Now change the side of 10 from right to left. 10 is in division in right side, it will go in multiplication in left side as shown below,

45 x 10 / 3 = X

Step 3 : Now cutting 45 with 3 we get 15

15 x 10 = X

150 = X

So the ans is 150 rs