Question

if cost of 12 pencils is rupee 1080 what is the cost of 7 pencils​

Answer 1

Answer:

I think 630 is the required answer

Answer 2

GIVEN:-

• if cost of 12 pencils is rupee 1080 what is the cost of 7 pencils.

TO FIND:-

• The cost of 7 pencils.

SOLUTION:-

Hey mate! Let's use unitary method here.So as we know in Unitary method we first find value of one product and then we multiply the value from given number of products.

• =>12/1080

• =>Rs.90

hey mate! We've found the cost of 1 pencil now to find the cost of 7 pencils we will multiply 90 with 7.

• =>90×7

• =>Rs.630

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 90 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \times 7 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: - - - \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 630 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:- - -$

hey mate! Cost of 7 pencils is Rs.630.

hope it helped!