একটি নির্দিষ্ট কোড ভাষায়, গুণকে '+' দিয়ে, ভাগকে '×' দিয়ে, বিয়োগকে '÷' দিয়ে এবং যোগকে '-' দিয়ে প্রকাশ করা হয়।

সমাধান করুন

30 ÷ 20 - 10 + 10 × 5 = ?

This question was previously asked in
CISF Constable (Fireman) 26 Sept 2023 Shift 3 Official Paper
View all CISF Fireman Papers >
  1. 20
  2. 45
  3. 30
  4. 55

Answer (Detailed Solution Below)

Option 4 : 55

Detailed Solution

Download Solution PDF

প্রয়োগকৃত যুক্তি হল:

তথ্য ডিকোড করলে,

চিহ্ন

×

÷

-

+

অর্থ

+

×

÷

-

 

প্রদত্ত সমীকরণ: 30 ÷ 20 - 10 + 10 × 5 = ?

বাম থেকে ডানে চিহ্নগুলি প্রতিস্থাপন করে এবং BODMAS নিয়ম ব্যবহার করে,

= 30 × 20 ÷ 10 - 10 + 5

= 30 × 2 - 10 + 5

= 60 - 10 + 5

= 65 - 10

= 55

অতএব, সঠিক উত্তর হল "55".

Latest CISF Fireman Updates

Last updated on Dec 16, 2024

-> The CISF Fireman 2024 Physical Test Hall Ticket has been issued for the recruitment of Constable (Fire)-2024.

-> CISF will conduct the PET/PST/DV from 24/12/2024 to 20/01/2025 at 35 centres across the Country. The admit cards for the PET/PST/DV is available on CISF website from 16/12/2024 onwards. 

-> Candidates had applied online from 31st August to 30th September 2024.

-> A total of 1130 vacancies have been announced. 

-> The vacancies are only for male candidates.

-> 12th-pass candidates between 18-23 years of age are eligible for this post.

->The selection process includes Physical Examination (PET/PST),  Document Verification, Written Examination, and Medical Examination.

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