Identify the wrong number in the series: 69, 55, 26, 13, 5

Identify the wrong number in the series: 69, 55, 26, 13, 5 ?

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Institution: Palli Karma-Sahayak Foundation Exam: Palli Karma-Sahayak Foundation - Asst. Manager - 23.12.2016 ||
Topic: Mathematics (সাধারণ গণিত) Subject: Mathematics (সাধারণ গণিত)

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If the average marks of three batches of 55,60 and 45 students respectively is 50,55 and 60, then the average marks of all the students is:

A man took a loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Tk. 5400 interest only for period. The principal amount borrowed by him was:

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Identify the wrong number in the series: 69, 55, 26, 13, 5 ?

If the average marks of three batches of 55,60 and 45 students respectively is 50,55 and 60, then the average marks of all the students is:

A man took a loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Tk. 5400 interest only for period. The principal amount borrowed by him was:

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