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Choose the correct alternative answer for the following sub question Find d of an A.P. whose first two terms are – 3 and 4 - Algebra

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Question

Choose the correct alternative answer for the following sub question

Find d of an A.P. whose first two terms are – 3 and 4

Options

  • 7

  • 4

  • – 7

  • – 3

MCQ

Solution

7

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Chapter 3: Arithmetic Progression - Q.1 (A)

APPEARS IN

SCERT Maharashtra Algebra (Mathematics 1) [English] 10 Standard SSC
Chapter 3 Arithmetic Progression
Q.1 (A) | Q 7

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Case Study

Push-ups are a fast and effective exercise for building strength. These are helpful in almost all sports including athletics. While the push-up primarily targets the muscles of the chest, arms, and shoulders, support required from other muscles helps in toning up the whole body.


Nitesh wants to participate in the push-up challenge. He can currently make 3000 push-ups in one hour. But he wants to achieve a target of 3900 push-ups in 1 hour for which he practices regularly. With each day of practice, he is able to make 5 more push-ups in one hour as compared to the previous day. If on first day of practice he makes 3000 push-ups and continues to practice regularly till his target is achieved. Keeping the above situation in mind answer the following questions:

  1. Form an A.P representing the number of push-ups per day and hence find the minimum number of days he needs to practice before the day his goal is accomplished?
  2. Find the total number of push-ups performed by Nitesh up to the day his goal is achieved.

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