Question

The cost of 100 envelopes is ₹ 450. how many such envelopes can be purchased for ₹ 90 ?

explain it and write in process in proportion method if u will write in process I will give u brainliest
and if u will give unless answer I will report that answer.
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Answer 1

Answer:

20 envelopes can be purchased for ₹100

Step-by-step explanation:

Cost of 100 envelopes is ₹450

let x envelopes can be purchased by ₹90

Doing a proportional analysis :

=> 100 : 450 : : x : 90

=> 100/450 = x/90

=> 100 × 90/450 = x

=> x = 20 ans.

HOPE IT HELPS!!

Answer 2

Answer:

answer is 20. ............

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