Select the most appropriate meaning of the given idiom.
To play ducks and drakes

In each of the following questions, sentences are given with blanks to be filled in with an appropriate word (s). Four alternatives are suggested for each question. Choose the correct alternative out of the four and indicate your choice for the correct answer.

It appears as though John’s having a run of bad luck, he failed to secure the much coveted scholarship, in spite of his dedication and intense_____.

6 के विपरीत कौन सी संख्या है?

सरिता 20% के लाभ पर फोन बेचती है। अगर उसने इसे 20% कम पर खरीदा और 180 रुपये में बेचा, तो उसे 25% का फायदा हुआ। फोन की लागत मूल्य ज्ञात कीजिए।