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Three teachers shared a packet of chalk. The first teache...

Three teachers shared a packet of chalk. The first teacher got 2/5 of the chalk and the second teacher received 2/15 of the remainder. What fraction the the third teacher receive?

A.

8/15

B.

11/25

C.

12/25

D.

13/25

Correct answer is D

First teacher received 25 ∴Remainder =125=35
2nd teacher received; 215of35=215×35=225
3rd teacher will receive; 125225=2510215=1325